I'd strongly suggest you remove the stun from projectiles from the easy difficulty level. I think that alone would make some of the tougher platforming sections much easier to deal with, where you have to time wall jumps between lasers and plant spit etc., and thus make the game a lot more appealing to people who aren't very good at platformers.
I consider myself one of those people, and after maybe 5 minutes of the demo I was just grinding enemies and pumping all my points into health and luck so that eventually I'd get a mid air dodge on the trickier projectiles and not even have to worry about timing it, since the enemies provide no challenge even without increasing your other attributes (which I assume are for melee and magic damage). As for the platforming mechanics themselves, I didn't have any trouble with the wall jump - if anything the biggest problem for me was failing to do a long jump just after sprinting sometimes, and other times doing a long jump when I wasn't trying to sprint, as well as just blatantly sprinting off ledges I was trying to ease up against.
I eventually made it through everything except the optional section with some kind of yellow item as the prize right after you acquire the blue spell, because I was about to throw my keyboard through my monitor after the Nth attempt at the final jump - the final jump didn't even seem like a very difficult part compared to the rest, it's just that all the work required to get there made it unbelievably frustrating every time I failed it, since there's no chance to trial and error through it without going through the entire gauntlet of laser beam moving platform tentacle avoiding jumps first.
The boss was horrifyingly easy, even moreso when I discovered its lack of H attack allowed me to just play possum by hitting space whenever he came down to bite, though I imagine that won't be included in the full release anyway. Speaking of the boss's H attack; as tempting as it must be to make a giant penis snake's animation vore related, I really dislike when games force obscure fetishes on you in boss fights. I'm all for diversity in animations when you've got a bunch of lesser monsters to work in, but boss animations should really appeal to a wider audience since it's harder to avoid them and you generally shouldn't want to avoid seeing a boss' animations - kinda defeats the purpose of having boss monsters in an H game. Maybe you didn't plan on it anyway, but when you mentioned vore animations earlier this was my first thought.
Anyway, that's my feedback. I generally don't like sprite animations but these are really well done, and the gameplay is pretty solid, so I'll definitely be picking this up when it's released, especially if you stick with such a reasonable price point.
PS what is that yellow rune I didn't get, it's really been bugging me. If it's just another +3 random attribute that doesn't matter, I'm glad I gave up on it, because I'm sure I would've flipped my desk
