Here is the full list of all 32 Varius achievements.
Die 25 times
Deflect the projectile 100 times
Complete 25 total sequences
Use shuttle to deflect 4 colors in one run
Complete 50 total sequences
Complete sequence 10
Complete sequence 8
Complete 10 total sequences
Complete sequence 5
Complete sequence 3
Complete 1 stage
Destroy 250 blocks
Die 10 times
Survive 1 minute
Survive 30 seconds
Attempt to deflect the purple projectile
Use the barrier to deflect purple
Use the wrong color shield to deflect
Survive 2 minutes
Survive 3 minutes
Deflect the projectile 500 times
Deflect the projectile 1000 times
Deflect the projectile 2000 times
Destroy 1000 blocks
Destroy 2000 blocks
Destroy 5000 blocks
Complete 10 stages
Complete 20 stages
Complete 30 stages
Complete 100 total sequences
Die 50 times
Die 100 times