Brilliant title. It oozes atmosphere, Horror and adventure.
Metroid Fusion uses its linear approach to full effect and creates a challenging and riveting experience that always stays true to Metroid. It is incredible fun and wonderous that they could create such an intense game for the Gameboy.
The story is the best in the series and SA-X besting you is just captivating. The level design and hunt for items is well-built like always, too.
I have but two little nitpicks: the gauntlet from Yakuza to Nettori is extremely limiting and If you have struggled before, you're gonna have a bad time. Furthermore it is not nice that you are not allowed to save after the boss fight against SA-X.

Definitely play this!

I have extremely conflicting feelings regarding this game. The surface sokoban gameplay is okay, nothing too great about it. But early on you realize there is much more. And it feels absolutely awesome finding the secrets, for example when I got the first time to crawlspace and found the wings, it was epic! However while I found the wings, I could not find the ability to talk to rocks and only found out later about it, when Adam Millard talked about it in one of his videos. It is easy to gloss over important items or clues and when it happens, it is brutal. Several hours of gameplay have to be redone, which sucks. This game wastes so much time and the conclusion is not enough for a casual fan. It is niche and for people who do not mind redoing 200+ rooms because they accidentally took the stairs for some nice new lore titbit, it is brillant. But the average fan will get burned out by the simplistic surface dungeon crawling