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