Trophies:
Bronze trophies
Ready to rock – Clear the first level.
Stabilized – Get all medals in any level.
All powered up – Have all 4 power-ups at the same time.
Ambitiously ambidextrous – Clear at least levels with all 3 controller types.
Bubbler of the week – Get 10 enemies within the same bubble.
Skull and crushed bones – Crush 10 skulls without touching the ground.
Firewalker – Defeat 100 enemies using the Fire Boots.
Best Friends Forever – Revive another player 10 times in co-op.
Silver trophies
Hard as Rock – Complete the game on Hard difficulty.
Given to wail – Clear all levels using a guitar.
Incognito – Clear each level collecting less than 20 points.
Gold trophies
The Per Lundberg Syndrome – Get 100% of all medals.?