As the denizens of Alderaan know, its no fun to have you're world blown up.

Hey whats going on? When I played Sonic Adventure 2 Battle, the game said that half the moon was destroyed. But, in Sonic Heroes, on the hang castle zone, theres a full moon! Same with Shadow the Hedgehog, Sonic 06, Sonic Unleashed, Sonic Colors. So what on earth is happening here?
Yuji naka

Maybe Yuji Naka got a bottle of super glue and stuck the moon back together for the Hang Castle zone in Sonic Heroes?