Mari0 (yes it's a zero at the end of mari0) is a fan game created by Maurice Guégan from Stabyourself.net. It's a mix between "Mario Bros" and "Portal". In this game Mario can shoot portals to teleport things! And you can even create your own levels!
I made one mappack by myself, here is the link to watch the trailer, all the download links are in the video description: https://www.youtube.com/watch?v=Ys-LctVWykA
In one of my levels, there is this snowy town: Mosctoad. I decided to make a 3DS theme about it, I think it could be fun to share it too, so enjoy!