If you don't want to use a tool and just want an IPS patch file to apply to your ROM: FRLG+ (FireRed LeafGreen Plus):
The Pokemon Fire Red Trade Evolution Patch is better than link cables and cheats because it is stable, easy to apply, preserves your save file integrity, and respects your time as a single-player gamer. Use the Universal Pokemon Randomizer or a dedicated IPS patch to evolve Kadabra, Haunter, Machoke, and Graveler by level up (usually Level 37-40). Your inner child will thank you. pokemon fire red trade evolution patch better
| If you want... | Best choice | |----------------|--------------| | | Universal Randomizer (set trade evos to Lv. 45–50) | | Simplicity + no other changes | The basic level-up .ips patch (find the “v1.1” version, not early buggy ones) | | Modern features + trade evo fix | Complete FireRed Upgrade (CFRU) | | Maximum control | Manual editing with G3T | If you don't want to use a tool
Which you are using to play the game
This is a popular "complete" hack of FireRed that allows you to catch every Pokémon from Gen 1-3 and evolves all trade Pokémon via leveling or specific in-game events. How to Apply a Patch (.ips or .ups) | If you want