10001100-01
75Complete the first stage
10001100-10
100Complete the second stage
10001100-11
125Complete the game
10-00110001
150Complete the first mirror stage
01-00110001
150Complete the second mirror stage
11-00110001
150Complete all mirror stages
Die 63 times.
Beat the first boss without jumping.
Beat the second boss without dying.
Beat the third boss without dying.