To me the gimmick of this game IS the oversized cab, take that away and you might as well be playing any other version of Tetris.
The price is good, but as D said... Without the giant joystick its a deal breaker.
You know what other game I would love to have at home, but the gimmick is all in the cab (so I can't)?
BTW that reminds me... If you ever see this slot machine at the casino...
Play it!
Yea the bonus rounds are the only place you actually get to play Space Invaders.
It's all random/chance if the symbols align to allow for that, just like normal/traditional slot machines.
However, if you do make it into a bonus round...
The better you play on the top screen, the higher the payout you'll receive from the machine when the round is over.
Also if you suck at Space Invaders I guess don't play it, because even when you "win" if you don't play well you'll get a very low payout.