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