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