booyeah all badges! HINT: back wheelies: cycle king | front wheelies: letter F | backflips: farty pants/ sir colin | frontflips: letter F / farty pants / sir colin | speed challenges: sir colin | airtime challenges: farty pants | collecting powerups: crouching badger hope this helps!
let me see if i can count all the special races that you can be... dominion, borg, super-cardassian... and i think there was one more hidden race but i forgot lol. the best part? they dont have to be unlocked, just found. not ingame, but in the menu. and im not telling anybody how to get them :D
 "Seed of Destruction"){kind=icon}
 "CycloManiacs"){kind=icon}
 "Battalion: Arena"){kind=icon}
 "Onslaught2"){kind=icon}
 "Arrival In Hell"){kind=icon}
 "Turn Based Battle!"){kind=icon}
 "This is the Only Level"){kind=icon}
 "Gray"){kind=icon}
 "FlashTrek: Broken Mirror"){kind=icon}
 "AirBattle"){kind=icon}
 "Hungry Shapes"){kind=icon}
 "Big Truck Adventures 2"){kind=icon}