Check out "Doom" as a 2D retro platformer with this free, fan-made remake: "MiniDOOM2" will likely appeal to "Contra" and "Metal Slug" fans

Check out https://www.youtube.com/watch?v=We23jlTe_nc
https://www.worlds50.com/2018/03/check-out-doom-as-2d-retro-platformer.html