diff --git a/src/test/moves/fly.test.ts b/src/test/moves/fly.test.ts
new file mode 100644
index 00000000000..a3566095f79
--- /dev/null
+++ b/src/test/moves/fly.test.ts
@@ -0,0 +1,121 @@
+import { BattlerTagType } from "#enums/battler-tag-type";
+import { StatusEffect } from "#enums/status-effect";
+import { MoveResult } from "#app/field/pokemon";
+import { Abilities } from "#enums/abilities";
+import { Moves } from "#enums/moves";
+import { Species } from "#enums/species";
+import GameManager from "#test/utils/gameManager";
+import Phaser from "phaser";
+import { afterEach, beforeAll, beforeEach, describe, it, expect, vi } from "vitest";
+import { BattlerIndex } from "#app/battle";
+import { allMoves } from "#app/data/move";
+
+describe("Moves - Fly", () => {
+  let phaserGame: Phaser.Game;
+  let game: GameManager;
+
+  beforeAll(() => {
+    phaserGame = new Phaser.Game({
+      type: Phaser.HEADLESS,
+    });
+  });
+
+  afterEach(() => {
+    game.phaseInterceptor.restoreOg();
+  });
+
+  beforeEach(() => {
+    game = new GameManager(phaserGame);
+    game.override
+      .moveset([ Moves.FLY ])
+      .battleType("single")
+      .startingLevel(100)
+      .enemySpecies(Species.SNORLAX)
+      .enemyLevel(100)
+      .enemyAbility(Abilities.BALL_FETCH)
+      .enemyMoveset(Moves.TACKLE);
+
+    vi.spyOn(allMoves[Moves.FLY], "accuracy", "get").mockReturnValue(100);
+  });
+
+  it("should make the user semi-invulnerable, then attack over 2 turns", async () => {
+    await game.classicMode.startBattle([ Species.MAGIKARP ]);
+
+    const playerPokemon = game.scene.getPlayerPokemon()!;
+    const enemyPokemon = game.scene.getEnemyPokemon()!;
+
+    game.move.select(Moves.FLY);
+
+    await game.phaseInterceptor.to("TurnEndPhase");
+    expect(playerPokemon.getTag(BattlerTagType.FLYING)).toBeDefined();
+    expect(enemyPokemon.getLastXMoves(1)[0].result).toBe(MoveResult.MISS);
+    expect(playerPokemon.hp).toBe(playerPokemon.getMaxHp());
+    expect(enemyPokemon.hp).toBe(enemyPokemon.getMaxHp());
+    expect(playerPokemon.getMoveQueue()[0].move).toBe(Moves.FLY);
+
+    await game.phaseInterceptor.to("TurnEndPhase");
+    expect(playerPokemon.getTag(BattlerTagType.FLYING)).toBeUndefined();
+    expect(enemyPokemon.hp).toBeLessThan(enemyPokemon.getMaxHp());
+    expect(playerPokemon.getMoveHistory()).toHaveLength(2);
+
+    const playerFly = playerPokemon.getMoveset().find(mv => mv && mv.moveId === Moves.FLY);
+    expect(playerFly?.ppUsed).toBe(1);
+  });
+
+  it("should not allow the user to evade attacks from Pokemon with No Guard", async () => {
+    game.override.enemyAbility(Abilities.NO_GUARD);
+
+    await game.classicMode.startBattle([ Species.MAGIKARP ]);
+
+    const playerPokemon = game.scene.getPlayerPokemon()!;
+    const enemyPokemon = game.scene.getEnemyPokemon()!;
+
+    game.move.select(Moves.FLY);
+
+    await game.phaseInterceptor.to("TurnEndPhase");
+    expect(playerPokemon.hp).toBeLessThan(playerPokemon.getMaxHp());
+    expect(enemyPokemon.getLastXMoves(1)[0].result).toBe(MoveResult.SUCCESS);
+  });
+
+  it("should not expend PP when the attack phase is cancelled", async () => {
+    game.override
+      .enemyAbility(Abilities.NO_GUARD)
+      .enemyMoveset(Moves.SPORE);
+
+    await game.classicMode.startBattle([ Species.MAGIKARP ]);
+
+    const playerPokemon = game.scene.getPlayerPokemon()!;
+    const playerFly = playerPokemon.getMoveset().find(mv => mv && mv.moveId === Moves.FLY);
+
+    game.move.select(Moves.FLY);
+
+    await game.phaseInterceptor.to("TurnEndPhase");
+    expect(playerPokemon.getTag(BattlerTagType.FLYING)).toBeUndefined();
+    expect(playerPokemon.status?.effect).toBe(StatusEffect.SLEEP);
+    expect(playerFly?.ppUsed).toBe(0);
+  });
+
+  it("should be cancelled when another Pokemon uses Gravity", async () => {
+    game.override.enemyMoveset([ Moves.SPLASH, Moves.GRAVITY ]);
+
+    await game.classicMode.startBattle([ Species.MAGIKARP ]);
+
+    const playerPokemon = game.scene.getPlayerPokemon()!;
+    const enemyPokemon = game.scene.getEnemyPokemon()!;
+
+    const playerFly = playerPokemon.getMoveset().find(mv => mv && mv.moveId === Moves.FLY);
+
+    game.move.select(Moves.FLY);
+
+    await game.forceEnemyMove(Moves.SPLASH);
+
+    await game.toNextTurn();
+    await game.forceEnemyMove(Moves.GRAVITY);
+    await game.setTurnOrder([ BattlerIndex.ENEMY, BattlerIndex.PLAYER ]);
+
+    await game.phaseInterceptor.to("TurnEndPhase");
+    expect(playerPokemon.getLastXMoves(1)[0].result).toBe(MoveResult.FAIL);
+    expect(enemyPokemon.hp).toBe(enemyPokemon.getMaxHp());
+    expect(playerFly?.ppUsed).toBe(0);
+  });
+});