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