This was a really fun play. I am currently playing games to research for my own project and this really helped. I feel the movement is a bit slow but it works for this type of game because the camera is zoomed back. The dash helps a lot, but was a bit finnicky and got me killed a lot.
Personally I would increase the default movement speed, and ever so slightly speed up the dash.
I played part of the first level and got the RPG, then the dash and movement speed. I would have liked it if there were checkpoints and save files so I could keep my upgrade progress.
The music and art was pretty good. The sprites were a bit small and hard to see in cases, especially when the action started to heat up.
I liked this game quite a bit.