Here is the full list of all 12 Rob Riches achievements.
Complete all levels of world 1
Complete all levels of world 2
Complete all levels of world 3
Complete world 1 in less than 990 steps
Complete world 2 in less than 485 steps
Complete world 3 in less than 700 steps
On and on we push!
14's okay, but 15 boulders are way too many!
Are you really willing to risk your life after such a close call?
Can you come back from the point of no return?
Merry-go-round!
Have you found the rest?