Here is the full list of all 25 Bzzzt achievements.
The base game contains 21 achievements, and there is 1 DLC pack containing 4 achievements.
Finish any stage in under 1.5 seconds.
Finish any stage with minimal score.
Perform silver or golden flawless run in all story mode stages.
Perform a golden flawless run in all story mode stages.
Collect all spare parts in all story mode stages.
Finish the game.
Finish the game on normal difficulty.
Use Quick Restart 200 times.
Finish the third boss fight.
Perform a golden flawless run in 30 stages.
Finish the second boss fight.
Die one hundred times.
Open Leaderboards.
Finish the first boss fight.
Perform a golden flawless run in 10 stages.
Beat a trophy time in ten stages.
Collect all spare parts and beat a trophy time in a stage simultaneously.
Collect 100 spare parts.
Finish the first stage.
Finish the game on insane difficulty.
Watch Emily's sequence till the end.