I finished the 0.15 version and I think it's a great step in the right direction!
The new enemy sprites were a surprise, can't wait to see what you do with those!
The performance mode was a good idea and I think it accidentally became an "easy-mode", as, on my computer, performance mode made timing hits/dodges very easy compared to when it's off; the timing cursor would get blurry on my screen and made it harder to time moves. Might be something you can add intentionally in the future to add to status effects like infect.
I kind of liked the "Endless mode" when you beat the last stage. It's a nice addition, even if for a little bit until full scan comes out.
Can't wait to see what the next update brings!
--*EDIT: I forgot to mention, I'm really happy Flagging actually works this time! It never seemed to work in the original version (at least for me), so for it to work in this one is really awesome.