Cool game, although really challenging! I had to really focus to pass some parts. 

Interesting mechanic with the umbrella, although the way I sometimes have to stand around, waiting to be able to "shoot" it again, somewhat disrupts the flow.

Speaking of that umbrella, there were some phases that I couldn't pass without it. And AFTER that, there was an explanation of the mechanic. Why is that? By that time, there was no need for that text at all.

The "not indicated collisionless" tiles are still there.

You should do something about that launcher. Not all controls are customizable from there (dash and umbrella). Those that are customizable, work properly in the game, but the ingame "help" text doesn't acknowledge that.

On death, the menu screen flashes briefly.