I love the style of the blur, it just got distracting. Having it on and only displaying when there was a relevant power up in use makes a whole lot of sense and would communicate to the player that a particular power up was active. With that implemented, I am not even sure it would need to be an option
Maybe for people that were a little sensitive to motion blur it would be a pleasant quality of life addition to turn it off completely.
Absolutely on the additional invincibility time. There would be a few times during the platforming at the end of the demo I would fall and land on a platform and have a laser hopper and a flying bot tag team me and I just couldn't do much.
I really enjoy and appreciate the pixel art. Wall climbing can be one of the quirkiest mechanics to implement and make players rage quit but you have executed the mechanic perfectly with zero frustration.
Super high quality.