M.U.G.E.N is a 2D fighting game engine with many customizable components. Originally released in 1999. M.U.G.E.N is designed to be highly customizable, allowing very fine control over each character's behavior, as well as allowing customization of almost all screen elements.

The majority of content created for M.U.G.E.N tend to be distributed as individual characters, stages or motifs. Assembling a game is as simple as downloading the content of your choice, and configuring M.U.G.E.N to know about it.

M.U.G.E.N is designed to be used by people with little or no programming experience, but with some artistic talent and patience to learn. Of course, having some programming background does give you a bit of a headstart. However, if you are just looking to play with downloaded content, all you need to know is how to unzip files and edit a text file.

Here's a sampling of features you can find in M.U.G.E.N:
1. Customizable title screen, character select screen, life and bars, game sound effects, fonts and more.
2. Characters can have any number of sounds and sprites of any size limited by your computer's memory.
3. Choose from multiple resolutions, ranging from 320x240 up to full HD at 1920x1080.
4. Cutscenes.

Game Engine
1. Use up to 7 buttons for a character.
2. Regular moves, special moves, super moves, etc.
3. Projectiles and special effects.
4. Move cancels and combos, multi-part moves and throws.
5. What your character can do is defined by a scripting language (and your imagination).

This is the default key configuration. You can change it from the options menu when you run the game.
Button / Player 1 / Player 2
1. Up Up arrow W
2. Down Down arrow S
3. Left Left arrow A
4. Right Right arrow D
5. X L R
6. Y semicolon T
7. Z double-quote Y
8. A comma F
9. B period G
10. C slash H
11. Start Enter U

If you have a joystick, you can enable it through the options screen. Press F1 to access Input Config and set up your joystick from there. Press left/right on the joystick type option to enable or disable the joystick for each player.

Please Note: M.U.G.E.N may be used free-of-charge for non-commercial purposes only.

The license of this software is Freeware, you can free download and free use this game utility software.