Plays inside your own copy of The Simpsons: Hit & Run, on your device, not in a browser tab. Opens github.com in a new tab.
How to play
Have your own copy of The Simpsons: Hit & Run installed: the mashup plays inside it.
Download it from its release page on GitHub (it runs on Windows).
Install it as its page says. What it asks for is just below, in the list's words.
Start the game the way its page says: some mashups come with a launcher of their own.
What it asks for
The Simpsons: Hit & Run with Lucas' Simpsons Hit & Run Mod Launcher; a DOOM IWAD (the demo mod ships the shareware WAD); about 16 MB extra RAM and disk space.