Select the "Extras" option and choose"Enter Code". Then, activate the following functions by entering the corresponding codes:
CHEAT FUNCTION - CHEAT CODE
Agent P "Perry the Plattyborg" skin - CIRCLE, X, CIRCLE, TRIANGLE, SQUARE, TRIANGLE.
Agh, Bees! - Run through the bee path in under 38 seconds.
Barging Through - Ride the entire balloon barge without falling once.
Charging Goozim - Make the Goozim charge into all the gnome village wreckage.
Commander Counselor - Defeat 3 Dooftron Commanders in the level. (The giant buildings)
Cruiser Destroyer - Don't let any cruisers get away. (Shoot them all down)
Cruising through Crushers - Get through all the crushers without getting hit.
Evil Vanquisher - Beat all the levels in the game.
First Gadget - Collect all the parts and construct your first gadget.
Gelatin Freedom-Fighter - Beat all the gelatin dimension levels.
Gelatin Revolution - Defeat the Gelatin Monster in under 180 seconds.
Gnome Toppler - Complete all the gnome dimension levels.
I'm A-levelin' Mah Gadgets! - Get each and every gadget up to maximum level.
Just Bouncy - Climb up the gelatin mountain but never bounce more than once on the same bouncy pad.
Modtacular - Collect all the mod chips in the game.
Padfoot - Don't trip any turret shots by stepping on the laser sensors.
Platform Walker - Stay on the moving platforms for at least 60 seconds. (Don't touch solid ground)
Quick and Timely Champion - Don't miss any button prompts during the giant robot fight.
Robot Rioter - Complete all the robot factory levels.
Rush to the Sewers - Get from the treehouse all the way into the sewers as quickly as possible.
That Old Timey Life - Complete all the old timey dimension levels.
Up, Up and Away... - Complete all the balloon dimension levels.
Weekend at the Arcade - Earn 2000 tickets in the course of the game.
Balloon Gold - Collect all of the gold tokens in the balloon dimension.
Chiptastic - Collect every upgrade,effect,and mod chip in the game.
Evil Doof's Gold - Collect all of the gold tokens assaulting Evil Doof's HQ.
Fantasy Gold - Collect all of the gold tokens in the gnome dimension.
Gelatin Gold - Collect all of the gold tokens in the gelatin dimension.
Grand Slam - Use only the Baseball Launcher to defeat the Doof-Robot.
Laser Tracer - Avoid 4 quad-laser attacks in a row.
Old Timey Winds - Go across the windy canyon without falling down once.
Robotic Gold - Collect all of the gold tokens in the robot factory.
The Full Cast - Unlock every single playable character (Baljeet, Isabella, Pinky, Peter).
There's Gold in Them Thar Hills - Collect all of the gold tokens in the old timey dimension.
Ticket Stockpiller - Have 500 tickets in your posession at once.
Version 2.0 - Install half of the upgrade chips in the game.
What the Boulder's Cooking - Defeat 3 enemies with boulders.
Dimensional Gold Claim - Collect all of the gold tokens across all the dimensions.
Figure Madman - Collect Every Figure in the game.
Let's Play Dress-Up - Unlock all 17 additional skins
Lifetime Accomplishment Award - Earn all Bronze, Silver, and Gold trophies.