Ready to rock
Clear the first level
5 ✓ March 2nd, 2010
The Per Lundberg syndrome
Get 100% of all medals
30 
Hard as Rock
Complete the game on Hard difficulty
25 
Incognito
In single player, clear each standard level collecting less than 20 points
25 
Given to wail
Clear all levels using a guitar
20 
Stabilized
Get all medals in any level
15 
All powered up
Have all 4 power-ups at the same time
15 
Ambitiously ambidextrous
Clear at least 3 levels with all 3 controller types
15 
Bubbler of the week
Get 10 enemies within the same bubble
15 
Skull and crushed bones
Crush 10 skulls without touching the ground
15 
Firewalker
Defeat 100 enemies using the Fire Boots
15 
🔐 Best friends forever
Revive another player 10 times in co-op
5