Thanks for the thorough feedback! I agree on all counts, there was a last minute change on jump height and shot spacing that made that "second blue shot" more or less impossible, and that kinda sucks. Variable jump height is a no-brainer, and I wonder how we got this far without considering that, haha! We'll take all of this into account, for sure.
The game is also playable on gamepad, which should help with the control layout issues!