It just feels great to play, mechanically it's a fantastic model for 2D Metroid to follow and replaying it makes me extra excited for Dread. It's a shame that it's Metroid 2, though... an inherently repetitive entry in the series with its overall premise being "do the same 4 boss fights 40ish times", further hampered by the damage output of mostly everything being sorta absurdly high. Not sure what the point of energy tanks is when practically everything takes out several in one hit! Love the ending though, all the new stuff they added from Ridley to the Fusion lead-in is excellent. Ridley's just far and away the best fight in the game, which is funny considering he's originally not even supposed to be there.