4. Mario & Luigi
Perhaps the best-known video game duo, Mario and Luigi were developed by AlphaDream and published by Nintendo. Over the past three decades, the two have become fan favorites and have appeared in over 200 video games. Dressing as the two of them isn’t difficult at all. If you don’t want to buy one of the already-made costumes available online, you can go with a pair of blue overalls, a green (for Luigi) or red (for Mario) shirt and hat and a mustache. That’s it. You can probably wear any type of shoes with this, though sneakers go best (and they can be found cheap).