While you game, you should put on this dope-ass podcast about Metroidvanias. As you can probably tell by my recent discussion and the image above, I've been dabbling a little bit myself. It's not my favorite genre in the world, but one I respect the heck out of, even if I think the name is a little silly.
Super Metroid is especially amazing. Everything about it is still impressive 20 years later… save for the controls, kinda. The controls could use some work. Good golly does wall-jumping hurt my hands.
What are you playing?