All Weapons And Missions
Press L, Black, White, R(2), White, Black, L at the main menu.
Unlimited Ammunition
Press Start to pause game play, then press R, L, Black(2), White, R, L, Black, White. Repeat this code to disable its effect.
Invincibility
Press Start to pause game play, then press L(3), Black, L, R(2), L, Black. Repeat this code to disable its effect.
Stay In Snowmobile
Play The Training Wheels level. When you are near the extreme temperature rooms, transform into the escape cycle. When you go over the snow, it will automatically turn into a snowmobile. However, it will stay a snowmobile even when you get out of the snow until you finish stage 3.