This is, as of now, my favorite Metroid game. And that’s a very strange answer, but one that doesn’t get parroted enough imo. This game’s simple approach to level design combats one of my biggest criticisms of early Metroid: a lack of a map. For the most part, you don’t need one, everything is structured tightly enough that simple landmarks will clue you in on where you are and what to look for, and the game naturally funnels explorative players down the right path. The power ups all feel rewarding because they still require a smidge of thought and creativity to find.

I’ll admit, its musically and graphically limited because its a GB game. But its ability to tell a complex narrative with no dialogue is such a breath of fresh air. And the way its game design can instill horror and emotion in the player is something that deserves more appreciation.

My preferred version is the Metroid 2 DX rom hack that adds color and frame rate buffs to the game. You can even find GBA flashcarts for authenticity of playing it on your Gameboy.