Blow up 2 mercenaries with 1 propane tank while riding the motorcycle

Defeat an enemy by detonating a fuel tank

Collect 5 common bronze rewards

Upgrade any weapon three times.

Complete a full set of armor.

Purchase any weapon mod.

Obtain the Sprout-O-Matic gadget.

Collect a piece of armor.

Complete a Stylish Rank S (Smokin'!) combo.

Pilot the spaceship to the moon

Open the chest on Black Isle

Complete Volcano's Treasure