Well, its not really taking things out. They're completely different battle systems. In Budokai its more like MK and those type of games, where you're always facing your opponent and it plays like a 2d fighter, right is forward, etc. In tenkaichi, you're facing your opponent, but up is forward and you can move completely around the stage. The only thing that keeps the game accessible is that there's an auto lock system so when you get to within a certain distance from your opponent x will make you dash towards them. Other than thatits got everything. Full flight, massive attacks, grappling, I'd even call it better than budokai in some ways because yeah, budokai has the dragon rush, but its the same exact move set every attack, whereas in tenkaichi you can pretty much make your own dragon rush the action is so fast paced.