Me just showing retro games being emulated on the Nintendo DS.
Website with all these emulators: http://www.zophar.net/consoles/nds.html
The emulators that I personally recommend are below.
Atari 2600: http://www.zophar.net/consoles/nds/a2600/stellads.html
Atari 5200: http://www.zophar.net/consoles/nds/a5200/a5200ds.html
Atari 7800: http://www.zophar.net/consoles/nds/a7800/a7800ds.html
NES: http://www.zophar.net/consoles/nds/nes/nesds.html
SNES: http://www.zophar.net/consoles/nds/snes/snemulds.html
GBC: http://www.zophar.net/consoles/nds/gb/lameboy-ds.html
GBA: http://www.zophar.net/consoles/nds/gba/gbaemu4ds.html
Sega Master System: http://www.zophar.net/consoles/nds/sms-gg/s8ds.html
Sega Genesis: http://www.zophar.net/consoles/nds/genesis/jenesisds.html
Here's the game compatibility for the Sega Genesis emulator.
Here's some of the game compatibility for the Super Nintendo.
▶️ DTube
▶️ IPFS