Latest update for Okinawa Rush:
multiplayer coop mode is working! (after a lot of hassle to get it right and relatively glitch-free)
The game now supports two players on the same machine with keyboard/joypad controls changing on-the-fly.
2P default keyboard controls are 4568 (numpad) for movement and Del/End for Jump/Kick.
It dawned on me afterwards that not all PC's have a "numpad" section, so i'll be changing that to something else later.