i'm assuming your 3ds is hacked, so some homebrew games/ports i like are celeste classic (the little pico-8 minigame from celeste), doki doki literature club, cookie clicker, and some sonic games. as for normal games, i love the scribblenauts series! you just go around solving people's problems with a notebook that makes what you write in it come to life. rollercoaster tycoon and zoo tycoon are also really fun. the sims 3 pets is also p good but it's much more limited than the pc vers of the sims. kirby triple deluxe is v good too. zelda four swords anniversary edition is p short but i love it.