Geometry adjusted, emulators optimized for 240p. This consumer 14" CRT doesn't show great scanlines but if you play very near is good.
This Blueretro adapter works very good on GameCube slots for bluetooth controllers like my 8Bitdo Pro2.
I learned PSX emulation isn't very good on Wii so not the definitive 240p retroconsole but it covers a lot for very cheap.
In Brinstar, just between the morph ball and the starting elevator? Well, yeah.
This exact spot (along with a few rooms around it) exists in Super Metroid too, with an added eye thingy that alerts the space pirates that Samus has returned.