This game is unbelievable for an indie dev to create for free. Production values are through the roof. It plays like Zero Mission on the GBA and arguably does a better job of remaking the classic than the official 3DS Samus Returns game.
I’m playing on PC but there is also an Android APK if you search for it.
I played this on Steam Deck and got 100%
absolutely the best way to play Metroid II.
No gimmick parry mechanics