Game you love that was hardly talked about

Metroid is kind of its own game genre youve probably heard metroidvania before.  Its a combo of exploration, atmosphere, puzzles, combat, platforming (usually not that precise but it can go as in depth as you want it to since it has a high skill ceiling), and new power ups opening up areas all over the map so they are usually considered nonlinear.  The last bullet point is basically what everyone considers metroidvania, you come across an area you might not be able to get to yet but it looks interesting so you either try to sequence break in there or remember to come back later when you have some other cool shit.  Exploring and discovering secrets is definitely the main appeal it is not a platformer like mario or donkey kong where that is all you do.