Here is the full list of all 21 Geko: Entering The Pipe achievements.
You jump well
So far it's easy
At this rate I'll get out of here fast!
You really master these plumbing
Just keep swimming, or rather... jumping
You are definitely the king of plumbing!
Today you are saving this lizard's life!
Thanks for getting this far
Use up to 5 "Continue" throughout the game
You have reached 1200 points, congratulations!
Finish the game with full health
Unless you're Mario
Good score
You jumped 100 times!
You jumped 200 times!
You jumped 300 times!
You jumped 400 times!
Jumps more than Mario.
(O.O) WHAT!
Dodged all the rats
Dodged all poison jets