I like platformers, this ones fun. Needs a lot of fine tuning. The hitboxes are not good, they need to be more forgiving and that took away from some of the fun since it didn't feel fair, especially the areas where you have to dash through spikes.  The backgrounds are great visually, the foreground looks like test assets to me.  The controls are not intuitive, I don't think Z should need to be held to climb walls (I had to fidget a lot to even learn that you could climb walls) It could be just pressing up next to a wall puts you in climb mode, then you hit arrow away to exit climb mode or jump from it. Music was pretty good.

There were some difficult sections (the one with the short rectangles of water that you have to dash and land on), but I managed the beat the game in 5:30 and 23 deaths :)

I'm glad the download is fixed, because this is an excellent platformer! Also I did not encounter any bugs, and the only "issue" I had is that it is hardwired in my brain that the up arrow will make the character jump, so I sometimes fell into the abyss because insted of pressing "C" I just walked off the edge and pressed "UP" lol.

Congratulations for making such a good game :) It's a lot of fun!