Sound 7 out of 10- The sound is ok. There's Marina talking, and the professor talking. But nothing to exiting. Enemy hits etc. etc.
Replay Value 6.5 out of 10- The replay value isn't to high because it's so easy. I was only stuck on about 2 levels out of who knows how many!
Overall- 7 out of 10- This game is fun for awhile, but after that it's horrible. It's way way too easy!