Get all the 150 medals
Finish the Classic mode on a single credit
Reach the end of the Final Zone
Find and destroy all the NegaCubes
Get 100 medals
Finish Zone 4
Finish Zone 3
Get 50 medals
Finish Zone 2
Perform a 100 cube chain
Score 50 in Flappyridium
Finish Zone 1
Get 10 medals