Pokémon "Blue Sea Edition" Cheats: Likely a ROM Hack — Codes Won't Transfer
There is no official "Pokémon Blue Sea Edition." It's almost certainly a fan-made ROM hack of Pokémon Blue (or FireRed/Emerald with a blue theme).
Cheats for ROM Hacks
No universal codes: Each hack rewrites memory addresses, scripts, and Pokémon data. Codes for vanilla Blue will not work and may corrupt the hack's save.
Source = best info: Check the hack's release thread (PokéCommunity, Relic Castle, GitHub, Discord). Authors often document included cheats (e.g., "Press L+R for Rare Candy") or provide a compatible cheat file (.cht/.gct).
Emulator cheat menus: VBA-M, mGBA, RetroArch allow manual code entry if you find the hack's specific codes.
Why Avoid Cheats Even in Hacks
Hacks often rebalance difficulty — cheats break the designer's intended curve.
Save corruption risk is higher in modified codebases.
Many hacks include built-in difficulty options (Easy/Normal/Hard) or "QoL" patches (fast text, exp multiplier) in the patcher menu.
If You Mean Original Pokémon Blue (1996/1998)
No in-game cheat menu. Requires GameShark / Action Replay / CodeBreaker hardware (original cart) or emulator cheat menu.
Common codes: Infinite Master Balls, Rare Candies, Walk Through Walls, Encounter Any Pokémon.
Use at your own risk — save often on separate slots.
Play the hack as the creator intended first. It's usually more rewarding.
