Okay, this is one of the early fun finds for me in Ludum Dare 33 "You are the Monster".
The art is almost not to be believed for so short a time - I think the devs said they borrowed stuff, but it's still grand!
It's pretty well balanced too. I got to 3600ish points, and I'm sure someone with good reflexes and the patterns down can get over 5000. It really wards well timed combos!
It is a Windows download with an installer, but it's worth it. The devs stayed focused and didn't try to over-do it, and worked hard to get it smooth. I didn't see many bugs. There's possibly one where you shoot the big flame and your health keeps going down, but that's minor.
So a lot of fun!