Mario versus Sonic on Mugen

The debate about who deserves video gamedom’s crown—Mario or Sonic—is probably getting old, but actual fights between the two video game heavyweights deserve attention. Take this video featuring Mario and Sonic beating each other up in a classic Mugen game for example:

Oh, for those wondering what Mugen is, here’s a brief description:

Mugen is a freeware 2D fighting game engine designed by Elecbyte, written in C with the Allegro library. The engine was originally released in July 1999. Beta versions of it were made to work on DOS, Linux and Windows platforms, distributed through their website. The engine allows users to insert created characters, background stages, and other game objects through interpreted text files, graphics, and sound compilations to create a functioning fighting game similar to commercial games.