Bridge Kit:
Get the crate located on a rooftop in Beefcake Breakfast.
Banana Bomb:
Complete Shotgun Challenge 3.
Earthquake Weapon:
Complete Jetpack Challenge 3.
Super Sheep:
Complete Sheep Challenge 3
Mad Cows:
Complete Shotgun Challenge 3 with all Golds.
Nuclear Bomb:
Complete Deathmatch Challenge 10 with all Golds.
Level Generator Codes
Enter 257462320 or 194915571
A tiny map which contains a bit of ground and a small bridge.
Enter 1585104494
A high altitude map.
Enter 241780260
A very long map.
Enter 221350867
A map with four consecutive submarines.
Enter marijuana
A massive island map.