- Play as Mutant-Clyde
Successfully complete the game to unlock the 'Mutant-Clyde' option under the cheat menu.

- Chicken Gamerpic
Successfully complete the Training levels to unlock the Chicken Gamerpic.

- Clyde Gamerpic
Successfully complete all levels, including the bonus levels to unlock the Clyde Gamerpic.

- Achievements
Do the following things to obtain the corresponding Gamerscore points:

8 Points
Becoming Baaaad	Become a Sheep-Clyde.
10 Points
Absurd Amphibian	Become a Frog-Clyde.
12 Points
Battle Addict	Play Versus mode.
Poultry Party	Become a Chicken-Clyde.
14 Points
Ancestorial Antics	Become an Ape-Clyde.
15 Points
Kenn Acquireion	Acquire 50 cloned Killer Kenn Action Figures.
16 Points
D.N.Ain't	Become a Mutant-Clyde.
18 Points
Dupliclone Dash	Successfully complete levels 1 to 24 and 10 Challenge levels under the goal time.
20 Points
Foolish Freedom	Exit 75 clones through the ventilation shafts.
King Clyde	Successfully complete all of Super-Challenge levels.
25 Points
Killer Kudos	Acquire 100 cloned Killer Kenn Action Figures.
30 Points
Master of all Clyde-Dumb	Successfully complete the game.

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