Hello Rezydent! Wow, thank you so much! I'm glad that you feel that way, especialy since your game is so good!
I have taken note on your points. For the next demo I'll for sure will have worked on them (Y).
I'm not sure if I'll add clawmarks to the wall when sliding hahaha, but I do need to add better feedback to the player! I'll see if just some dust particles do the trick ;)
There are still a couple of mechanics to add, like climbing poles, a crouch/jump, and that famous second jump from mario, where if you jump again imediately when landing, you jump higher. But hopefully soon enough I'll get to the visual stuff.
Thanks again for the feedbacks!!