Here is the full list of all 9 iZBOT achievements.
Collect all the HardToGetiums
Destroy forty collapsible blocks in a single level
Squash twenty bats and defeat Bedlor
Complete level three
Defeat Derpa the Rhino in less than thirty seconds
Complete level two
Splatter five enemies in under five seconds
Defeat the Slime Ball without bouncing on any of his minions
Complete level one