Here is the full list of all 21 Crazy Scientist achievements.
Click on EXIT
Touch 30 times to mushroom
Reach level 7
Reach level 8
Reach level 9
Reach level 10
Shoot 150 times
Reach level 6
Reach level 5
Reach level 4
Reach level 3
Reach level 2
Jump 50 times
Level 1 started
Click on PLAY
Click on MENU
Collect 20 flasks
Get damage in the amount of 30 units from the ghost
Get damage in the amount of 30 units from the zombie
Reach level 11
Reach level 12