Because reasons. That include merely agreeing with anti-GG. Quantity over quality.
Anyways, I played for a very very tiny bit and have to say it seems to have potential. It's definitely not Metroid though as it's much faster and platformier (like Earth Worm Jim, Contra or any of the other hundreds of side scroll games on the SNES). It does nail the Ikaruga though which is totes fun. I will give it a shot again; I've been wanting something to replace Drunken Robot Pronography for a while.