Here is the full list of all 30 Abomination Tower achievements.
All the way back down
Finished Easy Mode!
Level 10 Complete
Level 9 Complete
Level Eight Complete
Level Seven Complete
Level Six Complete
Level Five Complete
Level Four Complete
Level Three Complete
Unlocked 'Air head'
Unlocked 'Bucket'
Unlocked 'Flappy ears'
Unlocked 'Biter'
Unlocked 'All seeing'
Unlocked 'Spiker'
Unlocked 'Golden ego'
Unlocked 'Already dead'
Unlocked 'Speed demon'
Level Two Complete
Level One Complete
Unlocked 'Save my butt'
50 deaths!
A century!
200 deaths
500 deaths
1000 deaths
Finished Hardcore mode!
Finished Hard Mode!
Finished Normal Mode!