Gameshark Code for All Pokémon in Party (Red/Blue/Yellow/Green)

No single code exists. Gameshark modifies specific RAM addresses. Each party slot (1‑6) has separate addresses for Species, Level, Moves, IVs, EVs, OT, Nickname, etc. A single code cannot populate all 6 slots with 151 different Pokémon.

Why It’s Impossible via Single Code

• Party Structure: 6 slots × ~44 bytes each = scattered addresses.
• Pokédex Data: Species data (base stats, types, learnsets) in ROM, not RAM. Can’t inject new species data via GS.
• Checksums: Save has checksum. Raw RAM edits break it → “Save file corrupted” on load.

What Codes CAN Do

• Wild Modifier: Encounter any species (001‑151) in grass. You still catch them.
• Instant Catch / 100% Catch Rate.
• Party Slot Modifier: Change species in Slot 1 to Mew (e.g., 0115D8D1 for US Red/Blue Slot 1 Species). Repeat for 6 slots manually.
• Max Stats / Rare Candies / Master Balls.

Better: Save Editing (Emulator / PKHeX)

1. Play on mGBA / VBA‑M / BGB (PC/Phone).
2. Export `.sav` → Open in PKHeX (supports Gen 1‑2).
3. Edit Party: Add any Pokémon, set level, moves, IVs, Shininess, OT.
4. Import save → Play.

Legit Completion

• Trade between Red/Blue/Yellow (Link Cable / Emulator link).
• Events (Mew, Celebi) — only via Glitch (Mew glitch) or cheats.
• Green (JP) has different encounter tables.

Use PKHeX. It’s clean, instant, and safe for your save.