Skill Points	Reward
5	Big Head Ratchet
7	Tuxedo Ratchet
10	Big Head Clank
12	Mirrored Levels
15	Big Head Actors
20	Clown Ratchet
25	Big Head Enemies
30	Beach Boy

New Paint Jobs at Slim's:

Skill Points	Paint Job
10	Warp Streak
10	Supernova
10	Super Paint Job
15	Dark Nebula
15	Silent Strike
15	Solar Wind
18	Scoop Nose
19	Neutron Star
25	Clowner
25	Lunar Eclipse
29	Split Nose
29	Prepster
29	Plaidtastic
29	Insomniac

Start with more weapons:
If you completed Ratchet & Clank, start Ratchet & Clank: Going Commando with the memory card containing that save file.