Obtain the required number of skill points in order to unlock each feature.

Art	How to unlock
"James the Galactic Defender"	400 SP
2006 GDC Trailer	150 SP
2007 E3 Trailer	25 SP
Big Head Enemies	100 SP
Big Head Mode	50 SP
Character Concept Art	75 SP
Enviornment Concept Art	250 SP
Levels are Mirrored	500 SP
Ratchet Drawing Tutorial	350 SP
Script to Screen	600 SP
Weapon Concept Art	450 SP
Wrench Replacement	300 SP