It's a simple game but I like the effort you put in the menus and the presentation in general.
The ball felt a little floaty to me but I understand that it might be intentional to make the game harder.
I don't think there's any reason to use Q and E to turn the camera around by 90 degrees when the mouse or the second analog stick on a controller could move it more organically.
Also it wasn't obvious to me that the blast attack was something that you had to charge by picking up the collectables, it seems a bit strict imo, you only get one shot to deal with enemies.
Sometimes two platforms are not levelled perfectly and the ball goes flying when rolling on the slightly higher platform, if it's intentional it could be more obvious.
Other than that, it was a fun demo.