Decided to make the GAMMA version of the game available while I work on the final one.

Note that it has the following restrictions:
No sound
No AI
Locked at 1024×768 fullscreen

Each player uses the A button on their Xbox 360 controller. In order to maintain compatibility with OneSwitch devices (and for hotseat keyboard play), there are keyboard equivalents of each player’s action button:
P1 – Space
P2 – Enter
P3 – Left Control
P4 – Right Alt

Download it here.
Get the final version instead!