I wonder if the design of this game lends itself better to having many versions of code offering up a broader range of games compared to other designs? For example, adding a feature that causes the reactor to start 'leaking' would involve just having leds programmed to flash different color timed sequences etc. I think the lack of ramps and toys, and relying on lights, color, sounds, targets, shots, time make it a better generic platform for custom code forks, but not sure.
Also, having unique call-outs that rarely repeat themselves, like sounds song samples would be cool, as I find call-outs can get repetitive. Having 'organic' callouts with lots of cheap onboar memory to spare, and lots of license free sounds/music can make it more interesting than repeating call-outs... Same with light sequences, having randomness in the light patterns can make it more interesting over time, I would think. Most games have yet to take full advantage of the the ability to program LEDs and change their colors in new ways not possible in the past.