The artstyle works extremely well, the music however gets repetetive.
The gameplay is fun, although it relies a bit much on RNG, and I'd personally prefer more deep/synergy based system.
There's a lot of minor inconveniences- bug when leaving the floor, where it let me run through the elevator before it rubbered me back, combat feeling frustrating when there are multiple enemies just because I have to wait for my own turn, while 6 enemies have fun running around doing frick all (speed up enemy turn?), the ordinary attack animation being way too slow, but those are things that can be all fixed.
Overall, enjoyed the demo immensely. Good luck with the game. <3