Here is the full list of all 24 Where's My Mommy? achievements.
Choose the millimeter units. COCORICO
Tutorial: Go heavy.
Tutorial: Go liquid.
Tutorial: Grab your first spare life.
Die 100 times.
Get stuck.
Finish the Story mode.
Finish the Story mode with 3 spare lifes.
Get killed by the living hamster.
Get stuck in a condom.
Finish the Story mode in 6.40 or less.
Smash 20 hamster skeletons.
Last at least 5 minutes in hardcore mode. (Sadist mode)
Last at least 10 minutes in endless mode. (Endless Poopy storm)
Spend an hour in-game.
Score 1000 points globally.
Smash 20 cocaine bags.
Poor is the pupil who does not surpass his master. - Leonardo da Vinci
At least 160pts Time bonus in Story mode.
Go backwards through a thin path in heavy state.
Start and quit the game without playing.
Run in heavy state most of the time. (Story mode)
500 points in Endless mode. (In one ride)