Help me /v/
I've been looking for this one shmup forever I used to play it on PC in the early/mid 2000s. It was two player (both players sharing the keyboard) and the fighter design looked like the classic Raiden fighter but they only came in red and blue varieties.
It also had the classic Raiden weapon upgrades too iirc the spreadshot, the blue laser and the purple twisty beam. I don't remember much else except there was a warp point in the first stage that immediately allowed you to skip a few levels ahead or something.
Was most likely foreign, I remember my shitty toaster at the time didn't support foreign characters so the option menus were all gibberish characters.
demonstar?
demonstar right?