Grand Theft Auto (Game Boy Advance)/Cheats

Button Cheats
Activate cheat mode by pressing +  +  simultaneously. You'll receive a pager message confirming cheat mode is on. Enter these cheats during gameplay (they don't work in the pause menu). It's probably best to equip a melee weapon to avoid destorying things while entering the cheats.

Level Select
At the main menu press, , , , ,. Then hold and press. You'll know it's worked when you hear a beep and see an arrow at the bottom of the menu; simply go to the bottom for the new "Pick Level [Cheat]" option. Choose it and navigate through the islands and bosses until you find the mission you want. When you select it, it'll start you out near the boss location with no weapons, no cash, and no armor.

Weapon Cheat Notes
When you enter the weapon cheat, it gives you all the weapons, granted, but not maximum ammo. These are the amounts per weapon cheat entered:
 * 1x Fist
 * 1x Baseball Bat
 * 1x Katana
 * 12x Pistol
 * 8x Shotgun
 * 30x Uzi
 * 24x AK-47
 * 2x Flamethrower
 * 2x Molotov Cocktail
 * 2x Grenade
 * 4x Rocket Launcher
 * 50x Minigun