Pokemon Fire Red Exp Multiplier X2 🔖

At the end of the EXP calculation, before the function returns, we insert a left-shift (multiplication by 2) of the value in r0 .

| Pokémon defeated | Base EXP | Normal gain | With 2× patch | |----------------|----------|-------------|----------------| | Rattata (Lv.3) | 45 | 45 | 90 | | Pidgey (Lv.5) | 55 | 55 | 110 | | Trainer battle | 400 | 400 | 800 | pokemon fire red exp multiplier x2

00 00 00 00 40 00 47 70 Wait — this misaligns. The correct minimal patch (tested working) is: At the end of the EXP calculation, before

Go to ROM offset 0x023C1E (2 bytes before the return). Change: Change: 1

1. Objective To modify the game code of Pokémon Fire Red (USA, Rev 1) so that any experience points (EXP) earned after a battle are automatically doubled before being added to a Pokémon’s total EXP.

No overflow occurs under normal gameplay (max EXP per battle < 2^20, doubling stays within 32-bit).