Here is the full list of all 15 Wibble achievements.
One giant leap for Wibble-kind. Complete level 1.
Die 20 times in one level.
Complete level 5.
Complete level 20.
Complete level 15.
Complete level 18.
Complete level 24.
Complete level 26.
Reach level 30.
Complete level 30.
Destroy all tables and chairs in the club.
Die within a short distance from the winning platform.
Die 100 times in one level.
Die 500 times in one level. Poor Wibble.
Complete level 11.