I'm no BT authority (I have never played the game actually) but from watching the attract mode, the player sprite is the only thing that caught my eye as being out of place..
No prob. It's not my cup of tea, so all I've ever done with it was plug it in and power it up. The player sprite being bad is in your face obvious, but since I am not at all familiar with the game, I can't tell you with any certainty that the rest of the game is fine or not. It's probably a bad RAM chip or something, but it's not something that I'd bother to spend any time with since I don't care for the game.