Resolving Error Codes: Vanilla fire red, a modded version of Pokémon FireRed, may trigger error codes due to incompatible ROMs or improper patching. Verify that the ROM used is compatible with the vanilla fire red patch and apply the patch correctly to avoid these errors.

Navigating Overworld Bugs: Vanilla fire red can occasionally encounter overworld bugs, causing characters to become stuck or glitched. Reload the game or use the walk-through walls cheat to bypass these obstacles. Additionally, avoid stepping on specific tiles that may trigger the bugs.