nah. it's actually good you can play as homer,bart,marge,lisa,nelson,Prof Frink,otto,krusty and chief wiggum and here's some cheats (PS2):
The Simpson's Skateboarding - Playstation 2 Go to the character select screen and HOLD L1 + L2 + R1 + R2 and then put in a code below while holding these buttons
Get All Levels: Triangle, X, Square, Circle All Skaters: Circle, Triangle, X, Square