Here is the full list of all 32 Deranged Rabbits achievements.
Complete Frostbite Valley
Die 1000 times
Run for 42 kilometres
Complete Dark Castle
Jump 1000 times
Die 500 times
Complete Desert of Death
Jump 500 times
Complete Happy Grasslands
Die 100 times
Jump 100 times
Die 10 times
Play for 10 hours
Play for 5 hours
Play for 2 hours
Play for 1 hour
Play for 15 minutes
Complete Lava Inferno
Get all cabbages on Happy Grasslands
Get all cabbages on Desert of Death
Get all cabbages on Dark Castle
Get all cabbages on Frostbite Valley
Get all cabbages on Lava Inferno
Get all cabbages
Die 2000 times
Die 5000 times
Commit 100 suicides
Die in 23 different ways
Beat all levels with vomitron mode enabled
Beat all levels with mirrorworld mode enabled
Beat all levels with rotator mode enabled
Beat all levels with farzoom mode enabled