This is something
based off an old, and much more buggy spelunky multiplayer mod.. The
dancing final fantasy guy's one wouldn't work for me. So, I patched up a load of bugs and here this is.
The player that joins is Tunnel Man, but he doesn't have his mattock, because mattocks don't work anymore. So don't by a mattock next time you're at the store.
Boulders sometimes jack up, so don't try to push them around.
Sometimes you'll be carrying something on your screen, but the other guy can't see you carrying it.
The game gets desynchronized sometimes.. It's still playable, but to fix it, just go into the next room.
It only should be played on lan, but if you insist on playing multiplayer over the internet, here's the port you should forward on the server:
14804After all that list of defects, here's the download: