The hero is doing his daily jogging routine until misfortune happens and he ends up in abandoned mines. He tries to figure out the path to get out of there and the game idea is just about that get out of the place, defeat bosses along the way and collecting skills and stuff.

BinaryGodMonkey says

9/10 - Agree (13) Disagree (3)

This game is difficult, but possible. It's as unforgiving as a NES game, and looks like a NeoGeo game. This is basically perfect for a guy like me.

While I understand the low reviews from gamers used to the much easier modern games, I also understand why the devs made the choices they made. R-Type was also super difficult in the same way; death was punished. There isn't a check point in every room, so getting really far and dying means replaying areas quite a bit. If this doesn't sound good to you, then don't buy it. If you want a game with some challenge, well Project Black Sun is where it's at.