Here is the full list of all 17 Snake Cubed achievements.
Long Snake you got there
You ate a frog!! Delicious!!
You ate a Rat!! Gnarly!!
You launched the game!! Good Job!!
You ate a spider!! Yummy!!
You touched yourself!!
Killed 5 rats in under 3 seconds
First Rat Achieved
Two Rats Achieved
Three Rats Achieved
Over 500 rats eaten
Over 50 spiders eaten
Over 50 frogs eaten
You ate an apple!! Yum!!
Caught by an eagle
Completed all levels
Hypercube Level Unlocked