I feel like there's a fundamental clash of ideas.
I want this game to be hold down mouse and mow down hordes of bugs and watch them melt.
Then there's this other idea that this should be a precision platformer with parrying, and wall jumps?
I think, (and I believe this is on purpose) this is the slowest, most sluggish movement of any 2d platformer ever. The robot is worse than Ganondorf from SSB.
And so I don't think vertical precision platforming makes sense for this game. It just feels like a chore, especially as the very first thing you experience.
I think the game should at least start with horizontal side scrolling. Vertical climbing doesn't utilize the monitor's dimensions as well, you have less time to react to content as opposed to horizontal scrolling like in mario.
But it's hard to imagine any form of platforming that's fun with this movement. Maybe falling downwards instead of climbing up? Maybe on-rails segments?
I honestly had more fun playing robo-templar than this. That game just feels fun right away, at least before it starts getting cringe with bullet hell.
Obviously the game looks incredible as others have said, and I think many aspects such as the shooting are solid.