Play as Dingodile:
Win the Red Gem Cup. Play as Emperor Velo:
Get a 100% completion in Adventure Mode as Team Cortex.
Play as Fake Crash:
On a single track in Adventure mode playing as Team Cortex, get at least 50 boosts.
Play as N. Trophy:
Beat every N. Trophy ghost racer in Time Trial mode.
Play as Polar:
Win the Blue Gem Cup.
Play as Pura:
On a single track in Adventure Mode playing as Team Bandicoot, get at least 50 boosts.
Play as Real Velo:
Win two Scepters.
Play as Zam:
Win the Purple Gem Cup.
Play as Zem:
Win the Green Gem Cup.
Slide Coliseum track:
Collect all the Time Relics.
Terra Drome track:
Collect all the Purple CNK tokens in Adventure mode.
Hyper Spaceway track:
Finish in first place in all 16 tracks of adventure mode, then win the race at Hyper Spaceway against Emperor Velo to unlock it in all modes.