No, Im not affiliated - just thought that others would also enjoy... and sorry for being a tad bit ot
I first saw the screen shots, and wasnt too impressed... yet after finally getting arround to installing it, it simply RokZ!!! I can actually say, that its better than the original - and I Rarely ever say such a thing.
Its Fast, smooth, advanced gameplay (play inside and outside of circle), cool scrolling effects, bosses, awesome powerups... wow ! : )
http://www.mking.com Look under "Juno Nemesis"
BTW - Demonstar is pretty fun too : )