Mari0 Portal (stabyourself.net/mari0) is a Mario game with Portal physics.

I made these maps closest as possible to Mari0's Portal levels considering the Perpetual Testing Initiative limitations.
This was the first collection to appear in Workshop, but you will find reproductions from other users.

In my version, the priority is playability and similar problem solving.
This isn't 1:1 scale because in Portal you can't jump so high and you will not see faith plates everywhere to simulate that (it's not fun). Also, you will not see Mario's flag and some other objects, but everything will be fun.

Tip: If you watch a Mari0 walkthrough you can solve my maps with almost the same logic.

Have fun.