Become inedible.
Spill the salt.
Finish a Story level with both sides covered in jam (jelly).
Finish a Story level with 100% edibility. No Marmalade allowed.
Get an A++ on a Story level.
Get an A++ on a Cheese Hunt level.
Get an A++ on a Rampage level.
Get an A++ on a Bagel Race level.
Get an A++ on a Zero Gravity level.
Complete all Story Levels.
Complete all Cheese Hunt Levels.
Complete all Rampage Levels.
Complete all Bagel Levels.
Complete all Zero G Levels.
A++ all Story levels.
A++ all Rampage levels.
A++ all Cheese Hunt levels.
A++ all Zero G levels.
A++ all Bagel races.
Launch the Rocket.
Break the TV.
Use the Hairdryer.
Start the Chainsaw.
Start the Lawnmower.
Start the car.
Finish a Cheese Hunt level with 100% integrity.
Finish a Zero G level using less than 100 fuel.
Finish a Story level using Magic Marmalade.
Finish a Story level with exactly 1% edibility.
Climb atop the Garbage Truck in any mode.
Use more than one heat source to toast yourself in a single Story run.
Stand upright on the skateboard and ride it for 1m or more as the Wholemeal bread.
Completely cover yourself in butter and get toasted!
Stay airborne for over 5 seconds on any mode except Zero Gravity.
Take out the Starch Destroyer.