Here is the full list of all 17 SnakEscape achievements.
Find the hidden treasure and an exit.
Complete the level in 20 or more minutes.
Complete first level in Spring Pack with 99 moves and 3 stars.
Complete the level with 3 stars in less than 15 seconds.
Complete all levels with two snakes by 3 stars.
Collect 3 stars on each level.
Get slipped on the glider and be eaten by snake 5 times.
Get slipped on the glider and fly off the level.
Get on the spikes 10 times.
Leave 10 spikes before they will be open.
Use the glider more than 5 times in one level.
Complete summer levels with 3 stars.
Complete "Bresenham's circle" level with 3 stars after 10 deaths.
Meet the Gingerbald.
Complete the level by blocking the snake.
Allow the snake to eat 10 stars.
Complete the level with 3 stars on the first try.