The basic game mechanic is almost identical to "Noiz", a PalmOS game: http://www.asahi-net.or.jp/~cs8k-cyu/palm/noiz.html http://www.asahi-net.or.jp/~cs8k-cyu/p

The basic game mechanic is almost identical to "Noiz", a PalmOS game: http://www.asahi-net.or.jp/~cs8k-cyu/palm/noiz.html http://www.asahi-net.or.jp/~cs8k-cyu/palm/noiz.html Noiz has much more complex patterns of "enemies" to avoid, though. If you don't have a Palm device handy, the source is still pretty fun to pick through.