Here is the full list of all 24 On A Roll 3D achievements.
Score a total of 250000 points
Collect 2500 stars
Score a total of 100000 points
Hit bumpers 100 times
Trigger dynamite 25 times
Defeat the final boss without losing any stars
Complete the game
Play the game upside-down!
Kill 100 enemies
Collect 1000 stars
Score a total of 50000 points
Jump 1000 times
Jump on springs 100 times
Complete your first level
Hit 3 enemies consecutively
Score a total of 25000 points
Collect 500 stars
Complete Garden Trail Area 1 in under 1 minute and 12 seconds
View the credits screen.
Collect 250 stars
Score a total of 10000 points
Collect 100 stars
Complete your first area
Find a hidden extra life