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