Portal is the absolute best physics-based video game in existence. It’s a total blast to pop in and out of the game using the Portal Gun, which launches a blue and an orange portal wherever you aim. Then all you have to do is walk through one portal and come out the other. It’s a simple concept, but the game designers are such geniuses that they’ve created essentially three full games of quirky and funny puzzles around that concept. (Portal 2 had both a single and a multiplayer game, each with its own unique puzzles).

So it’s no surprise that other games want to get in on the fun. Here are some fun videos I’ve found where some clever people insert Portal Guns into classic games.

Such as Super Mario Bros.

Or Mega Man, which went the extra effort into actually creating Portal Man!

I’ll post more if I find them.