It was aight. I can see why a lot of metroid fans don't like it though. It is definitely linear, and the fact that the linear map is also non-euclidean (you pretty much need a pre-made map with this game, drawing this game as it is on paper is literally impossible) makes this not really much of a metroid game in all honestly. If you instead choose to see it like some sort of weird 2D collectathon or something then maybe that might be a better experience. I give a rec since its still pretty badass for an original game boy game, but still a cautious rec if you are a fan of the series or somethin. Maybe try the 3DS remake instead, though I haven't played that yet.