These are all compatible websites for the nintendo 3ds internet browser https://www.tetralark.com/ClickerJs/ blackdragon.mobi www.kingdomofloathing.com urbandead.com
https://socialneko.co/games/wonderland/
https://eukavlin.github.io/retro-snake/
http://playboxie.com/wiiu/
http://www.effectgames.com/effect/games/mariodemo/
https://2048game.com/

let me know if you find any more okay ps only some of the games on playboxie work since they are designed for the WII U