Air Grafitti Tag
Go to the Broken Plane with the split in it in The Triangle. Get off your board and Face Toward the Mountain In Between the two parts of the plain. Just do a Grafitti Tag and it will Appear to be in Midair!!!! I think this is because it is on the Boundry, and I don't know if this will work in every level.
More tricks, tips and cheats for this game are right here - Tony Hawk's Underground 2 cheats
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