Always happy to see a fellow Reaper user in the wild ;)

I think, the frying pan sound is a little overly present and having different piano tracks playing melodic parts at the same time as the accordion track (e.g. starting around 0:45) is too many instruments in the same range fighting for the listener's attention. And without a rhythm instrument providing a clear pulse, it is very easy to lose track of what is happening in your piece (is it in 4/4? 3/4?)

I'd suggest revisiting the registers where your instruments are active and making sure that each octave only has one melody line at the same time, to make them easier to distinguish and playing around with mix levels and maybe volume automation to put different instruments into the foreground of your piece at different times. 

I do think the game idea is cute though, and it certainly fits into something that is a chaotic cooking party game.

Youtube: