This is an awesome surprise and has reinvigorated my love for this game (as it was my first). I own a Premium. The new code definitely helps with scoring (got 1.1 billion on my first game with new code) even though the super jackpot scoring is lower, but you do get one more extra ball than usual it seems. Chattering teeth tiers are reminiscent of Ghostbusters ghosts which is a nice touch. There may be something funky with Grandpa's lab multiball, not totally sure yet... New sounds and flashes are refreshing as well. And the Challenge mode is nice. Overall, it's cool to have some added depth and layering with the Enlarging Ray happening over your normal Munster modes for some stacked scoring. Great Christmas gift!