- Play as a block
Pause the game, press Y, then push LB(2), Y, LB(2), Y.

- Musclemen (small heads)
Pause the game, press Y, then push Right, Left, Down, Up.

- Le fils de I'homme (apple head)
Pause the game, press Y, then push Up(3), Down(3).

- Get Funky (afro hair)
Pause the game, press Y, then push X(3), Y(3).

- Bonus characters
Successfully complete the indicated task to unlock the corresponding character:

Kefling	Buy A Kingdom For Keflings, and unlock an achievement.
Police	Successfully complete the 'Short Circuit' challenge in Chapter 1.
Captain J. Turncoat	Successfully complete Chapter 3.
Duck	Successfully complete the 'Quack Attack' challenge in Chapter 1.
Barry Steakfries	Reach level 10 (Zuppercutter) in Online Multiplayer mode.
Devil	Successfully complete the 'Cinder Certificate' challenge.
Koala	Successfully complete the 'Boom Town' challenge .
Angel	Successfully complete the 'Zap Ascent' challenge.
Rich Raskull	Successfully complete the 'Pomp and Circumstance' challenge.
Ilimo	Buy Ilimos, and unlock an achievement.
Sergeant	Successfully complete the 'Military Might!' challenge.

- Paper Bag (paper bag on head)
Pause the game, press Y, then push Left, Right, Left, Right, Left.

- Intense mode in Local Multiplayer mode
Be victorious in one cup on the Hard difficulty to unlock the Intense difficulty in Local Multiplayer mode.

- Transient mode (beard)
Pause the game, press Y, then push Up, Down, Up, Down, Up.

- I hate you Shapeasaurus (play as Shapeasaurus)
Pause the game, press Y, then push RB, Up, Down, RB, Up, Down.

- Egomaniacs (big heads)
Pause the game, press Y, then push Up, Down, Left, Right.

- Achievements
Do the following things to obtain the corresponding Gamerscore points:

10 Points
Flame Grilled	Hit three other Raskulls with a single Flame Charge.
Bone On!!	Be victorious in a race in Mega Quest!
Tell Friends About This Game	Be victorious in a four-player local Grand Prix match - and don't forget to brag about it!
20 Points
Flip Out	Unleash your power and defeat the boss at the end of Chapter 2.
Cheaters Never Prosper	Overcome that dastardly Thief at the end of Chapter 1.
Five Times a Raskull	Be victorious in 5 Xbox LIVE Grand Prix matches!
25 Points
Hail to the King	Finish the Mega Quest and bring peace to the Raskulls.
King Of Bling	Acquire every Medallion in the Mega Quest.

15 Points
Purrrrfect	As Kitten, win a race with a Stun All in reserve.
Viking Punch!	As Viking, rebound a Flame Charge with Wand Push.
20 Points
Block Dodger	Finish the Shiny Stone Cup without being crushed.

15 Points
Battleboned!	As Battlebones, win a race without using Frenzy.
Well-Done	Be victorious in on Tempest Tunnels by Flame Charging upwards to the Finish.
20 Points
Stay Frosty	Finish the Halfbrick Cup without being burnt by lava.

- Too Bright! (sunglasses)
Pause the game, press Y, then push LB, RB, LB, RB, LB.

- Avatar Awards
Successfully complete the indicated task to unlock the corresponding Avatar Award:

Giant King Mask	Successfully complete a certain Mega-Challenge in Chapter 2.
Raskulls T-shirt	Successfully complete the Zap Excavator level (located at the northern most part of the map) in Chapter 1.

- Crown Cup in Local Multiplayer mode
Be victorious in all cups on the Medium difficulty to unlock Crown Cup in Local Multiplayer mode.

- Moustache ENGAGE! (mustache)
Pause the game, press Y, then push RB(3), LB(3).