there is a port of srb2 for the 3ds. It only works on the N3ds and it's an older version, but it runs perfectlyis it possible to port some freeware games from the early 2000's (Windows XP era) like Sonic Robo Blast 2 or maybe Game Maker or even much better... Zelda Classic
if you want to do it, https://github.com/derrekr/srb2_3ds that's a link where you can download it. you'll need files from 2.1.22 so use that game version.