Lots of stuff here, a good start! I think it was released just a bit too soon even for sneak preview.

bugs:
- unfortunately none of the enemies would die although their death animations seemed to trigger.
- In general animations that shouldn't be triggering appeared to be triggering.
- pause menu doesn't work

style:
- that initial menu is very amateurish, especially the font. Unfortunately I think a lot of people will bounce as soon as they see that main menu even though it doesn't have any other impact on the game. Consider changing that.

A brilliant idea that I am sure will be used as inspiration for many game developers in the future.

To your credit, it was executed on well enough such that it was entertaining and intriguing. But, as you said, the game is definitely in an unpolished and unfinished state. Most notably the gamut of bugs that exist in the game from Not a Numbers appearing in bunnies after they spread, to bunnies not being able to explore, to humans not being able to spread, the list is quite extensive.

Still even with all of these problems, the brilliance of the idea is enough for me to give it a 4 stars. I look forward to the games that will come out of this pioneering idea that will be able to refine and execute on it better.

Overall:
Great music, nice art and good atmosphere that unfortunately is accompanied by repetitive game play that quickly bores.

Pros:
Nice job with the artwork and music.
The idea was creative

Cons:
Not enough challenge and too repetitive. Very boring game.
Not enough different elements in the levels
the view port was was too narrow.

Nice job! I especially liked the beginning. It had a great atmosphere. I thought you lost it a little by the end, especially the last 30 seconds.

The droning synth in the background is pretty obnoxious. I think its partly the sound and partly the fact that it doesn't vary at all in either the notes or the dynamics. Also the pan flute is pretty cheesy at the end.

I would say that if you were going for a 90's retro game theme then this might be ok.

I really like it, hope you win