Drum roll please...
Not sure what I expected.
It has the falling pills, reminiscent of Dr. Mario. It has the color flip from Ikaruga. Visually, its great. The music is good enough. It plays with a mouse and 2 buttons. One to "fire" and the other to flip.
I'm not sure if its appropriate for an arcade cabinet or not. Leaning towards not, but I don't have a trackball installed to compare appropriately.
To be fair, I've played it for less than 3 minutes. I'll give an update if I play it again or if anyone wants to pose a question.