Complete any level without taking damage
Finish every stage solo on Double Dragon difficulty!
Use every weapon once
Defeat Skullmageddon!
Dodge and get the Gleam 50 times
Upgrade a song at the Tapesmith
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Finish every stage cooperatively on Double Dragon difficulty with friendly fire enabled!
Max out every song to level 50!!
Break all the Skullmageddon monitors in the Rocket Dojo
Nail all enemies with the hair pick
Complete any level in co-op without taking any damage... with friendly fire enabled!
