Here is the full list of all 30 Megabyte Punch achievements.
Find all 30 hidden colors
Collect 8192 bits
Win the tournament
Complete the frostbyte challenge level
Find the flying ruins
Clear the Electro Caves Stage 1 within 30 seconds
Destroy 1000 enemies
Complete the adventure mode!
Defeat the Emperor
Break 16 enemy shields with your pelvic thrust
Defeat General HB-03
Defeat the Ice-Beak Assassins
Destroy 500 enemies
Find the Megabyte Punch arm part
Find the hidden level
Defeat Grand Khotep Muer
Defeat Grand Khotep Scarb
Bounce from the hot plates 10 times in a row
Defeat General HB-02
Destroy 100 enemies
Defeat Warlord Bouldar
Win the tournament without dying
Defeat the big boss without losing a life
Collect all 150 parts
Spend over 5000 bits in the shop
Win the tournament with no ability parts equipped
Jump 5 times in a row
Reflect a projectile 10 times in a row
Win all the special parts from the tournament.