Here is the full list of all 25 Cloning Clyde achievements.
Run in wheels for 30 minutes (cumulative over a level, but not the game.)
Become a Mutant-Clyde.
Win the game!
Complete levels 1-24 and 10 Challenge levels under par time.
Complete all of the Challenge Levels.
Ride a sheep in the cowboy outfit
Clone yourself 50 times
Collect all of the cloned Killer Kenn Action Figures.
Destroy 100 secuirty bots
Collect 100 of the cloned Killer Kenn Action Figures
Become an Ape-Clyde.
Destroy 50 security bots
Collect 50 of the cloned Killer Kenn Action Figures.
Exit 75 clones through the ventilation shafts.
Clone yourself 25 times
Rescue 40 clydes
Become a Frog-Clyde.
Become a Sheep-Clyde.
Destroy 10 security bots
Become a Chicken-Clyde.
Confuse clyde with extraneous input 15 times
Destroy a security bot with a rocket
Ride a rocket
Super attack five machines
Rescue a clyde