The original Metroid 2 is a garish and claustrophobic nightmare, and AM2R certainly loses some of that hostile nature (and it's screeching) by bringing the experience more in-line with Super Metroid, but holy hell, at least it's actually playable.

An impressive game all around. Little sad it's been eclipsed by Samus Returns but I'll always respect it more for having the idea you should be able to see where the hell you're going in Metroid 2 before Nintendo.