Here is the full list of all 20 FOTONICA achievements.
Reach gold speed twice in an endless level
Stay in gold for more than 60s
Run with a speed over 100m/s.
Complete a multiplayer run.
Get over 10000pts on any level.
Complete a level with alternate controls.
Play FOTONICA without distractions.
Prove your face indestructible.
Collect a column of dots.
Listen to the sounds of nature.
Complete one level.
Complete the tutorial.
Reach a new state of consciousness
Get over 10000pts on each level.
Complete all levels on all difficulties.
Collect more than 999 total dots.
Get over 25000pts in an endless level.
Complete every level, any difficulty.
Complete everything.
Run more than 1000000m.