Spectacular.
I actually became a NG gold member just so that I could review this game, and post my score.
What can I say? This game had me playing for three hours last night, and another two today. I'm addicted, and it's great. The best part of the whole thing is "Yo Squirrel, four rounds to go," with absolutely no further explanation. That made my day.
Current score: 21934540
You can bet I'm gonna keep playing, too.