Simulation, not emulation... But yes. PS1, N64, and everything on down. Sorry Flame, no Crysis. But I've got a plethora of ways to play DOOM now. PrBoom is probably my favorite. It's nice and fast, running on the ARM side of the SoC compared to the DOS version.
I may try the new ram site, and download more RAM to my Switch. Not sure if ddr3 is the right ram
for it tho. Edit- no it uses floppy Ram, just like @AncientBoi