Beat the game in Fail Ass Mode or higher.

Beat the game in Normal Mode or higher.

Eat the boot.

Touch the butt.

Eat the unicorn.

Eat the arcade machine.

Beat normal mode, and don't bump or eat a living animal or human.

Beat normal mode after eating 20 bombs.

Shoot an entire clip past the Butt King.

Eat all four "Denice" signs.

Eat all 25 dogs.

Eat all 40 burgers.

Beat normal mode or higher at minimum length.

Beat Classic Mode.

Get 300,000 points in normal mode or higher.

Get 700,000 points in normal mode or higher.

Get to Wave 5 in savage mode.

Kill the Butt King with power surge in normal mode or higher.

Kill 20 enemies with one "Denice" powerup.

Kill 20 enemies with one power surge.

Eat the unicorn when you are already max length.

Beat Retro Mode.

Get to the boss at max length in normal mode or higher.

Fight the butt king in normal mode or higher without getting hurt.

Get to the butt king in normal mode or higher without getting hurt.

Beat the game in Savage Mode.