Interesting. That looks very SNES/Genesis ... there appears to be a PC port too, but I guess that's one where it doesn't really matter which system you get it for. It should be identical.
I kinda prefer the kinda "fake" retro look of Katana ZERO or Hotline Miami (looks retro but no actual way it could be ported to an SNES). I also worry about these games being stupid hard. I can deal with Katana ZERO hard, but not Hyperlight Drifter hard.