Play through all of the single-player campaign levels with a friend.
Note: Getting co-op/multiplayer to work via the DosBOX emulation that runs this game now requires tinkering with a few things. There's a post on the Steam forums that details the steps to get this up and running.
Lo Wang worked for Zilla Enterprises, a conglomerate with control in every major industry. Too much control. Power corrupts, and Master Zilla's corporation was corrupted to the core.
Lo Wang discovered Master Zilla's demonic scheme to rule Japan, using creatures summoned from the dark side. A man of honor, Lo Wang quit. But one as powerful as Wang either must be on your side, or on no one's side. Master Zilla unleashes his creations for their first test: to kill a single man, a shadow warrior... Lo Wang!