Here is the full list of all 46 Mr. Dubstep achievements.
Finish the game
Complete level 24
Complete level 23
Complete level 22
Complete level 21
Complete level 20
Complete level 19
Complete level 18
Complete level 17
Complete level 16
Complete level 15
Complete level 14
Complete level 13
Complete level 12
Jump 1000 times
Change Gravity 200 times
Change Gravity 100 times
Complete level 11
Complete level 10
Complete level 9
Change Gravity 50 times
Complete level 8
Jump 500 times
Die 50 times
Complete level 7
Complete level 6
Die 40 times
Die 30 times
Complete level 5
Jump 200 times
Complete level 4
Complete level 3
Change Gravity 5 times
Die 20 times
Complete level 2
Jump 50 times
Die 10 times
Die 5 times
Jump 10 times
Complete level 1
Dash 100 times
Dash 75 times
Die
Dash 50 times
Dash 25 times
Dash 10 times