AVATAR AWARD - HOW TO UNLOCK Splosion Man T-Shirt - Break your first pane of glass. Big Science T-Shirt - Complete all of the game's levels in co-op. Splosion Man Sweatshirt - Break your first pane of glass. Big Science Dress - Complete all of the game's levels in co-op. Dashboard Avatar T-shirt - Break any glass to unlock the 'Splosion Man T-shirt.
ACHIEVEMENT - HOW TO UNLOCK Get Them Out of Our Schools (10 points) - Kill 10 Scientists. Master of Controls (10 points) - Edit the controller configuration. You're the Best Around! (25 points) - Beat Single-Player mode. A Little Help from Your Friends (25 points) - Beat Multiplayer mode. Omaha Steaks, Delicious! (15 points) - Create 5,000 filets. Not a Portal Reference (25 points) - Collect all 47 cakes in Single-Player mode. Sugar High (25 points) - Collect all 47 cakes in Multiplayer mode. Get Over Yourselves (10 points) - Select "Credits" from the "Help & Options" menu and watch the entire credits. Only Gandhi Would Be Proud (10 points) - How long can you handle being a pacifist? Lay Off the Caffeine (10 points) - Let your hyper little brother play the game for a bit. All Hail The Splode King (25 points) - Beat the Single-Player game in Hardcore mode. Eventual Destruction of a Galaxy (10 points) - Be on the lookout for an old friend.