diff --git a/assets b/assets
index a36741a2112..9398703b8f0 160000
--- a/assets
+++ b/assets
@@ -1 +1 @@
-Subproject commit a36741a2112217eaf067248d7d1917266339a56d
+Subproject commit 9398703b8f0e437ef6d5212373e2ae8465b3bfda
diff --git a/locales b/locales
index 6b5e2130256..fe7025942cf 160000
--- a/locales
+++ b/locales
@@ -1 +1 @@
-Subproject commit 6b5e2130256dd521908f15a485d045fb36baca41
+Subproject commit fe7025942cf5ad1391380cc4e52695535c56c986
diff --git a/src/phases/login-phase.ts b/src/phases/login-phase.ts
index aebdcdae152..9747eb2e9c7 100644
--- a/src/phases/login-phase.ts
+++ b/src/phases/login-phase.ts
@@ -79,51 +79,14 @@ export class LoginPhase extends Phase {
   }
 
   private showLoginRegister(): void {
-    const { gameData, phaseManager, ui } = globalScene;
-
-    const backButton = () => {
-      phaseManager.unshiftNew("LoginPhase", false);
-      this.end();
-    };
-
-    const checkUserInfo = async (): Promise<boolean> => {
-      ui.playSelect();
-      const success = await updateUserInfo();
-      if (!success[0]) {
-        removeCookie(sessionIdKey);
-        globalScene.reset(true, true);
-        return false;
-      }
-      return true;
-    };
-
-    const loginButton = async () => {
-      const success = await checkUserInfo();
-      if (!success) {
-        return;
-      }
-      await gameData.loadSystem();
-      this.end();
-    };
-
-    const registerButton = async () => {
-      const success = await checkUserInfo();
-      if (!success) {
-        return;
-      }
-      this.end();
-    };
+    const { ui } = globalScene;
 
     const goToLoginButton = () => {
-      globalScene.playSound("ui/menu_open");
-
-      ui.setMode(UiMode.LOGIN_FORM, { buttonActions: [loginButton, backButton] });
+      this.goToLogin();
     };
 
     const goToRegistrationButton = () => {
-      globalScene.playSound("ui/menu_open");
-
-      ui.setMode(UiMode.REGISTRATION_FORM, { buttonActions: [registerButton, backButton] });
+      this.goToRegister();
     };
 
     if (this.showText) {
@@ -134,4 +97,56 @@ export class LoginPhase extends Phase {
 
     ui.setMode(UiMode.LOGIN_OR_REGISTER, { buttonActions: [goToLoginButton, goToRegistrationButton] });
   }
+
+  private async checkUserInfo(): Promise<boolean> {
+    globalScene.ui.playSelect();
+    const success = await updateUserInfo();
+    if (!success[0]) {
+      removeCookie(sessionIdKey);
+      globalScene.reset(true, true);
+      return false;
+    }
+    return true;
+  }
+
+  public goToLogin(): void {
+    const { gameData, ui, phaseManager } = globalScene;
+
+    const backButton = () => {
+      phaseManager.unshiftNew("LoginPhase", false);
+      this.end();
+    };
+
+    const loginButton = async () => {
+      const success = await this.checkUserInfo();
+      if (!success) {
+        return;
+      }
+      await gameData.loadSystem();
+      this.end();
+    };
+    globalScene.playSound("ui/menu_open");
+
+    ui.setMode(UiMode.LOGIN_FORM, { buttonActions: [loginButton, backButton] });
+  }
+
+  public goToRegister(): void {
+    const { phaseManager, ui } = globalScene;
+
+    const backButton = () => {
+      phaseManager.unshiftNew("LoginPhase", false);
+      this.end();
+    };
+
+    const registerButton = async () => {
+      const success = await this.checkUserInfo();
+      if (!success) {
+        return;
+      }
+      this.end();
+    };
+    globalScene.playSound("ui/menu_open");
+
+    ui.setMode(UiMode.REGISTRATION_FORM, { buttonActions: [registerButton, backButton] });
+  }
 }
diff --git a/src/plugins/api/api-base.ts b/src/plugins/api/api-base.ts
index 842b16d5ce0..94d7737d2c0 100644
--- a/src/plugins/api/api-base.ts
+++ b/src/plugins/api/api-base.ts
@@ -74,6 +74,7 @@ export abstract class ApiBase {
       console.log(`Sending ${config.method ?? "GET"} request to: `, this.base + path, config);
     }
 
+    // TODO: need some sort of error handling here?
     return await fetch(this.base + path, config);
   }
 
diff --git a/src/plugins/api/pokerogue-account-api.ts b/src/plugins/api/pokerogue-account-api.ts
index fa9414210bc..8d328abea68 100644
--- a/src/plugins/api/pokerogue-account-api.ts
+++ b/src/plugins/api/pokerogue-account-api.ts
@@ -52,7 +52,7 @@ export class PokerogueAccountApi extends ApiBase {
       console.warn("Register failed!", err);
     }
 
-    return "Unknown error!";
+    return "Unknown registration error!";
   }
 
   /**
@@ -76,7 +76,7 @@ export class PokerogueAccountApi extends ApiBase {
       console.warn("Login failed!", err);
     }
 
-    return "Unknown error!";
+    return "Unknown login error!";
   }
 
   /**
diff --git a/src/system/settings/settings-language.ts b/src/system/settings/settings-language.ts
index b1df2444507..0c7cbb400aa 100644
--- a/src/system/settings/settings-language.ts
+++ b/src/system/settings/settings-language.ts
@@ -1,4 +1,5 @@
 import { globalScene } from "#app/global-scene";
+import type { LoginRegisterInfoContainerUiHandler } from "#ui/login-register-info-container-ui-handler";
 import type { SettingsDisplayUiHandler } from "#ui/settings-display-ui-handler";
 import i18next from "i18next";
 
@@ -8,6 +9,8 @@ const cancelHandler = () => {
   // Reset the cursor to the current language, if in the settings menu
   if (handler && typeof (handler as SettingsDisplayUiHandler).setOptionCursor === "function") {
     (handler as SettingsDisplayUiHandler).setOptionCursor(-1, 0, true);
+  } else if (handler && typeof (handler as LoginRegisterInfoContainerUiHandler).setInteractive === "function") {
+    (handler as LoginRegisterInfoContainerUiHandler).setInteractive(true);
   }
 };
 
diff --git a/src/timed-event-manager.ts b/src/timed-event-manager.ts
index 4a811f45c41..fcb2a85a15d 100644
--- a/src/timed-event-manager.ts
+++ b/src/timed-event-manager.ts
@@ -708,7 +708,7 @@ export class TimedEventManager {
 }
 
 export class TimedEventDisplay extends Phaser.GameObjects.Container {
-  private event: TimedEvent | nil;
+  private readonly event: TimedEvent | nil;
   private eventTimerText: Phaser.GameObjects.Text;
   private banner: Phaser.GameObjects.Image;
   private availableWidth: number;
@@ -725,7 +725,7 @@ export class TimedEventDisplay extends Phaser.GameObjects.Container {
    * Set the width that can be used to display the event timer and banner. By default
    * these elements get centered horizontally in that space, in the bottom left of the screen
    */
-  setWidth(width: number) {
+  public setWidth(width: number): void {
     if (width !== this.availableWidth) {
       this.availableWidth = width;
       const xPosition = this.availableWidth / 2 + (this.event?.xOffset ?? 0);
@@ -738,7 +738,7 @@ export class TimedEventDisplay extends Phaser.GameObjects.Container {
     }
   }
 
-  setup() {
+  public setup(): void {
     const lang = i18next.resolvedLanguage;
     if (this.event?.bannerKey) {
       let key = this.event.bannerKey;
@@ -775,7 +775,7 @@ export class TimedEventDisplay extends Phaser.GameObjects.Container {
     }
   }
 
-  show() {
+  public show(): void {
     this.setVisible(true);
     this.updateCountdown();
 
@@ -784,13 +784,13 @@ export class TimedEventDisplay extends Phaser.GameObjects.Container {
     }, 1000);
   }
 
-  clear() {
+  public clear(): void {
     this.setVisible(false);
     this.eventTimer && clearInterval(this.eventTimer);
     this.eventTimer = null;
   }
 
-  private timeToGo(date: Date) {
+  private timeToGo(date: Date): string {
     // Utility to add leading zero
     function z(n) {
       return (n < 10 ? "0" : "") + n;
@@ -816,8 +816,8 @@ export class TimedEventDisplay extends Phaser.GameObjects.Container {
     });
   }
 
-  updateCountdown() {
-    if (this.event && this.event.eventType !== EventType.NO_TIMER_DISPLAY) {
+  private updateCountdown(): void {
+    if (this.event && this.event.eventType !== EventType.NO_TIMER_DISPLAY && this.eventTimerText.visible) {
       this.eventTimerText.setText(this.timeToGo(this.event.endDate));
     }
   }
diff --git a/src/ui/handlers/login-or-register-ui-handler.ts b/src/ui/handlers/login-or-register-ui-handler.ts
index b5733a9eaee..e3bcc27afea 100644
--- a/src/ui/handlers/login-or-register-ui-handler.ts
+++ b/src/ui/handlers/login-or-register-ui-handler.ts
@@ -29,7 +29,6 @@ export class LoginOrRegisterUiHandler extends LoginRegisterInfoContainerUiHandle
     return [i18next.t("menu:login"), i18next.t("menu:register")];
   }
 
-  // TODO: use mixins so it's not necessary to inherit from `FormModalUiHandler`
   public override getInputFieldConfigs(): InputFieldConfig[] {
     return [];
   }
diff --git a/src/ui/handlers/login-register-info-container-ui-handler.ts b/src/ui/handlers/login-register-info-container-ui-handler.ts
index 556ab94e15f..89a166da73b 100644
--- a/src/ui/handlers/login-register-info-container-ui-handler.ts
+++ b/src/ui/handlers/login-register-info-container-ui-handler.ts
@@ -7,6 +7,7 @@ import type { ModalConfig } from "#ui/modal-ui-handler";
 import { fixedInt } from "#utils/common";
 import i18next from "i18next";
 import JSZip from "jszip";
+import type InputText from "phaser3-rex-plugins/plugins/inputtext";
 
 interface BuildInteractableImageOpts {
   scale?: number;
@@ -30,12 +31,12 @@ const MAX_SAVES_FOR_USERNAME_PANEL = 7;
 const ERR_NO_SAVES: string = "No save files found";
 const ERR_TOO_MANY_SAVES: string = "Too many save files found";
 
-// TODO: use mixins
 export abstract class LoginRegisterInfoContainerUiHandler extends FormModalUiHandler {
   private usernameInfoImage: Phaser.GameObjects.Image;
   private saveDownloadImage: Phaser.GameObjects.Image;
   private changeLanguageImage: Phaser.GameObjects.Image;
   private infoContainer: Phaser.GameObjects.Container;
+  private lastFocusedInput: InputText | null = null;
 
   public override getReadableErrorMessage(error: string): string {
     if (!error) {
@@ -109,6 +110,7 @@ export abstract class LoginRegisterInfoContainerUiHandler extends FormModalUiHan
     this.changeLanguageImage //
       .setPositionRelative(this.infoContainer, 40, 0)
       .on("pointerdown", () => {
+        this.setInteractive(false);
         globalScene.ui.setOverlayMode(UiMode.OPTION_SELECT, {
           options: languageOptions,
           maxOptions: 7,
@@ -154,6 +156,7 @@ export abstract class LoginRegisterInfoContainerUiHandler extends FormModalUiHan
     const handler = () => {
       globalScene.ui.revertMode();
       this.infoContainer.disableInteractive();
+      this.setInteractive(true);
       return true;
     };
 
@@ -162,6 +165,7 @@ export abstract class LoginRegisterInfoContainerUiHandler extends FormModalUiHan
     }
 
     globalScene.ui.setOverlayMode(UiMode.OPTION_SELECT, { options, delay: 1000 });
+    this.setInteractive(false);
     this.infoContainer.setInteractive(
       new Phaser.Geom.Rectangle(0, 0, globalScene.game.canvas.width, globalScene.game.canvas.height),
       Phaser.Geom.Rectangle.Contains,
@@ -230,4 +234,45 @@ export abstract class LoginRegisterInfoContainerUiHandler extends FormModalUiHan
 
     return img;
   }
+
+  /**
+   * Enable or disable interactivity on all interactive objects.
+   * @param active - Whether to enable or disable interactivity
+   */
+  public setInteractive(active: boolean): void {
+    const objects = [...this.buttonBgs, this.usernameInfoImage, this.saveDownloadImage, this.changeLanguageImage];
+
+    for (const obj of objects) {
+      if (active) {
+        obj.setInteractive();
+      } else {
+        obj.disableInteractive();
+        if (obj instanceof Phaser.GameObjects.Image) {
+          obj.clearTint();
+        }
+      }
+    }
+
+    this.setInteractiveInputs(active);
+    this.setMouseCursorStyle("default");
+  }
+
+  /**
+   * Enable or disable interactivity on all input fields.
+   * @param active - Whether to enable or disable interactivity
+   */
+  private setInteractiveInputs(active: boolean): void {
+    if (active) {
+      // `setFocus` doesn't focus without a timeout
+      setTimeout(() => {
+        this.lastFocusedInput?.setFocus();
+        this.lastFocusedInput = null;
+      }, 50);
+    } else {
+      this.lastFocusedInput = this.inputs.find(input => input.isFocused) ?? null;
+    }
+    for (const input of this.inputs) {
+      (input.node as HTMLInputElement).disabled = !active;
+    }
+  }
 }
diff --git a/src/ui/handlers/oauth-providers-ui-handler.ts b/src/ui/handlers/oauth-providers-ui-handler.ts
index 8839f6880a1..4b02741fdf5 100644
--- a/src/ui/handlers/oauth-providers-ui-handler.ts
+++ b/src/ui/handlers/oauth-providers-ui-handler.ts
@@ -6,7 +6,6 @@ import { addWindow } from "#ui/ui-theme";
 import { fixedInt } from "#utils/common";
 import i18next from "i18next";
 
-// TODO: use mixins
 export abstract class OAuthProvidersUiHandler extends LoginRegisterInfoContainerUiHandler {
   private discordImage: Phaser.GameObjects.Image;
   private googleImage: Phaser.GameObjects.Image;
@@ -56,6 +55,18 @@ export abstract class OAuthProvidersUiHandler extends LoginRegisterInfoContainer
     this.getUi().add(this.externalPartyContainer);
   }
 
+  public override setInteractive(active: boolean): void {
+    super.setInteractive(active);
+    const externalPartyIcons = this.externalPartyContainer.list.filter(obj => obj instanceof Phaser.GameObjects.Image);
+    for (const obj of externalPartyIcons) {
+      if (active) {
+        obj.setInteractive();
+      } else {
+        obj.disableInteractive();
+      }
+    }
+  }
+
   protected processExternalProvider(): void {
     const titleX = 22;
     this.externalPartyTitle
diff --git a/src/ui/handlers/party-ui-handler.ts b/src/ui/handlers/party-ui-handler.ts
index 477ef2bf1ef..afb5dad29eb 100644
--- a/src/ui/handlers/party-ui-handler.ts
+++ b/src/ui/handlers/party-ui-handler.ts
@@ -1515,9 +1515,6 @@ export class PartyUiHandler extends MessageUiHandler {
           );
         }
         this.addCommonOptions(pokemon);
-        if (this.partyUiMode === PartyUiMode.SWITCH && pokemon.isFusion()) {
-          this.options.push(PartyOption.UNSPLICE);
-        }
         break;
       case PartyUiMode.REVIVAL_BLESSING:
         this.options.push(PartyOption.REVIVE);
@@ -1551,6 +1548,9 @@ export class PartyUiHandler extends MessageUiHandler {
       case PartyUiMode.CHECK:
         this.addCommonOptions(pokemon);
         if (globalScene.phaseManager.getCurrentPhase().is("SelectModifierPhase")) {
+          if (pokemon.isFusion()) {
+            this.options.push(PartyOption.UNSPLICE);
+          }
           this.options.push(PartyOption.RELEASE);
           const formChangeItemModifiers = this.getFormChangeItemsModifiers(pokemon);
           for (let i = 0; i < formChangeItemModifiers.length; i++) {
diff --git a/src/ui/handlers/registration-form-ui-handler.ts b/src/ui/handlers/registration-form-ui-handler.ts
index 250a243e494..8a92fc3563b 100644
--- a/src/ui/handlers/registration-form-ui-handler.ts
+++ b/src/ui/handlers/registration-form-ui-handler.ts
@@ -2,9 +2,11 @@ import { pokerogueApi } from "#api/pokerogue-api";
 import { globalScene } from "#app/global-scene";
 import { TextStyle } from "#enums/text-style";
 import { UiMode } from "#enums/ui-mode";
+import type { LoginPhase } from "#phases/login-phase";
 import type { InputFieldConfig } from "#ui/form-modal-ui-handler";
 import type { ModalConfig } from "#ui/modal-ui-handler";
 import { addTextObject } from "#ui/text";
+import { fixedInt } from "#utils/common";
 import i18next from "i18next";
 import { LoginRegisterInfoContainerUiHandler } from "./login-register-info-container-ui-handler";
 
@@ -86,7 +88,7 @@ export class RegistrationFormUiHandler extends LoginRegisterInfoContainerUiHandl
         this.submitAction = originalRegistrationAction;
         this.sanitizeInputs();
         globalScene.ui.setMode(UiMode.LOADING, { buttonActions: [] });
-        const onFail = error => {
+        const onFail = (error: string) => {
           globalScene.ui.setMode(UiMode.REGISTRATION_FORM, Object.assign(config, { errorMessage: error?.trim() }));
           globalScene.ui.playError();
         };
@@ -109,18 +111,25 @@ export class RegistrationFormUiHandler extends LoginRegisterInfoContainerUiHandl
             if (registerError) {
               onFail(registerError);
             } else {
-              pokerogueApi.account
-                .login({
-                  username: usernameInput.text,
-                  password: passwordInput.text,
-                })
-                .then(loginError => {
-                  if (loginError) {
-                    onFail(loginError);
-                  } else {
-                    originalRegistrationAction?.();
-                  }
-                });
+              const username = usernameInput.text;
+              const password = passwordInput.text;
+              pokerogueApi.account.login({ username, password }).then(loginError => {
+                if (loginError) {
+                  // retry once if the first attempt fails
+                  const retryLogin = () => {
+                    pokerogueApi.account.login({ username, password }).then(error => {
+                      if (error) {
+                        (globalScene.phaseManager.getCurrentPhase() as LoginPhase).goToLogin();
+                      } else {
+                        originalRegistrationAction?.();
+                      }
+                    });
+                  };
+                  globalScene.time.delayedCall(fixedInt(2000), retryLogin);
+                } else {
+                  originalRegistrationAction?.();
+                }
+              });
             }
           });
       }
diff --git a/src/ui/handlers/title-ui-handler.ts b/src/ui/handlers/title-ui-handler.ts
index de3bbecb0ce..5a55495edea 100644
--- a/src/ui/handlers/title-ui-handler.ts
+++ b/src/ui/handlers/title-ui-handler.ts
@@ -261,6 +261,7 @@ export class TitleUiHandler extends OptionSelectUiHandler {
   private getSnow(): void {
     const width = globalScene.scaledCanvas.width;
     const height = globalScene.scaledCanvas.height;
+    this.snow?.destroy(); // Ensures no duplicate snow layers
     this.snow = globalScene.add.tileSprite(width, height, width, height, "snow");
     this.snow.setOrigin(1, 1);
 
diff --git a/test/plugins/api/pokerogue-account-api.test.ts b/test/plugins/api/pokerogue-account-api.test.ts
index ec309b87069..91351d248df 100644
--- a/test/plugins/api/pokerogue-account-api.test.ts
+++ b/test/plugins/api/pokerogue-account-api.test.ts
@@ -85,12 +85,12 @@ describe("Pokerogue Account API", () => {
       expect(error).toBe("Username is already taken");
     });
 
-    it('should return "Unknown error" and report a warning on ERROR', async () => {
+    it('should return "Unknown registration error!" and report a warning on ERROR', async () => {
       server.use(http.post(`${apiBase}/account/register`, () => HttpResponse.error()));
 
       const error = await accountApi.register(registerParams);
 
-      expect(error).toBe("Unknown error!");
+      expect(error).toBe("Unknown registration error!");
       expect(console.warn).toHaveBeenCalledWith("Register failed!", expect.any(Error));
     });
   });
@@ -119,12 +119,12 @@ describe("Pokerogue Account API", () => {
       expect(console.warn).toHaveBeenCalledWith("Login failed!", 401, "Unauthorized");
     });
 
-    it('should return "Unknown error" and report a warning on ERROR', async () => {
+    it('should return "Unknown login error!" and report a warning on ERROR', async () => {
       server.use(http.post(`${apiBase}/account/login`, () => HttpResponse.error()));
 
       const error = await accountApi.login(loginParams);
 
-      expect(error).toBe("Unknown error!");
+      expect(error).toBe("Unknown login error!");
       expect(console.warn).toHaveBeenCalledWith("Login failed!", expect.any(Error));
     });
   });