Finish level 8-8
Unlock world 8
Unlock world 7
Land on a mattress
Get half of the stars
Unlock world 6
Change gravity for all
Unlock world 5
Use a teleporter
Unlock world 4
Complete 5 levels of the first TETRA's Escape (levels A and B)
Save at least 100 Tetras (cumulative)
Get a quarter of the cups
Get a quarter of the stars
Unlock world 3
Walk at least 1000 squares (cumulative)
Finish a level without getting a star
Unlock world 2
Complete one level of the first TETRA's Escape (levels A and B)
Make your first tetromino transformation
Obtain first cup