There's some really nice stuff in this game, but it's pretty rough at this point.
All the game screens were in one corner of the window, with quite a bit of grey space around them. I figured this way just an issue with resolution scaling but others seem to be having that issue as well.
There's something in the audio, maybe in the music track, that sounds like the seat belt bong on an airplane. It was amusing at first but quickly wore out its welcome.
I'm not really sure what's going on in the cutscene. The art is very nice- it's not a style I see a lot but it works for this game quite well.
The cutscene was way too long for the length of gameplay, but I think this would be less of an issue in the full game.
The core gameplay is actually pretty fun, more than I expected. Unfortunately, I think the spawn logic is glitched. All the mice spawned either very close together in one corner of the box or outside of the apparent playable area entirely.
It's also possible to slap during the cutscene before the game starts.
As a demo it's not bad. There's definitely some work to be done, but I don't think there's anything fundamentally broken- just needs some fixes and some tweaks.