• Banana Bomb: Complete Shotgun Challenge 3.
• Bridge Kit: In the Beefcake Breakfast, get the crate located on a rooftop.
• Earthquake Weapon: Complete Jetpack Challenge 3.
• Mad Cows: Complete Shotgun Challenge 3 with all golds.
• Nuclear Bomb: Complete Deathmatch Challenge 10 with all golds.
• Super Sheep: Complete Sheep Challenge 3

• Grandpa Voice: Beat Nobody Rides For Free without blowing up the pay booths.
• Super Villain Voice: Get gold on Alien Juice Suckers.
• Horror Voice: On Grave Danger, put a grenade on the dirt mound behind the chapel (the huge building).
• Madchester Voice: On Schools In For Summer, throw a grenade through each basketball hoop.

• Pass Test Tube training to unlock the Pro Weapon Scheme.
• Get gold on To Boldly Go to unlock the Sinking Big Weapon Scheme.
• Get gold on Hook, Line and Skimmer to unlock the Sniper Weapon Scheme.
• Get gold on Hold Until Relieved to unlock the All Action Weapon Scheme.
• Get gold on Beef Cake Breakfast Brawl to unlock the Sticky Wars Weapon Scheme.

If you type in "team17" on the keyboard in the Quick Fix mission then you will unlock French Lover's voice.