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[Supernova]

A rare horizontal shmup from Taiwan

http://sideline.ghegs.com/

Polish release version can be found on old-games.ru
http://www.old-games.ru/game/4467.html

I'm not sure if the Windows executable works for everyone, but it works here on my Windows 7 rig. If it doesn't work then use dosbox and follow the instructions provided in the first link.