1) He was the "New" Fett which brings with it the title of "Badass."
2) He had a Jet Pack, Skateboarding + Jet Pack = Extreme Skateboarding.
3) To go along with the Pro Skater tradition of having off the wall secret characters.
Spider-Man (Pro Skater 2)
Darth Maul (Pro Skater 3)
Wolverine (Pro Skater 3)
Doom Guy (Pro Skater 3)
Demoness (Pro Skater 3)
Kelly Slater (Pro Skater 3)
Jango Fett (Pro Skater 4)
Eddie, Iron Maiden's mascot (Pro Skater 4)
Iron Man (Underground)
Gene Simmons (Underground)
T.H.U.D. (Underground)
Jesse James (Underground 2)
Steve-O (Underground 2)
Phil Margera (Underground 2)
Bigfoot (Underground 2)
Shrek (Underground 2)
Call of Duty Soldier (Underground 2)
Benjamin Franklin (Underground 2)
Lil Jon (American Wasteland)
Jason Ellis (American Wasteland)
Billie Joe Armstrong from Green Day (American Wasteland)
Jason Lee (Project 8 )
Travis Barker from Blink 182 (Project 8 )
Grim Ripper from the Guitar Hero series (Project 8 )
Judy Nails from the Guitar Hero series (Proving Ground)
MCA from Beastie Boys (Proving Ground)
Kat Von D from Miami Ink and LA Ink (Ride)
James Hetfield from Metallica (Pro Skater HD)
Robert Trujillo from Metallica (Pro Skater HD)