The gameplay was a lot of fun in this one! Dashing and blasting with a shotgun will always be a good time. I also liked the way the wave 10 boss was designed, it was a fun enemy to deal with.
The screen flashing when picking up stuff sometimes make me think I got hit and confuses me, and I think it may be better for that to just be an audio cue. I also think the spell card weapon is a little underwhelming, and it would be nice if the bullets shot a little faster to really make it feel like you are at max power.
Overall, I had a good time playing it and would like to see a more complete version someday! The highest wave I got to was 16.