I had a lot of fun with this game. The enemies could use some animations, and I don't think they should injure you upon contact because the player is using a sword, which makes the fights very tedious. The boss at the end could use some more moves, and he shouldn't damage you when he touches you, he should perform an attack when he's caught up to you.
I found the it is not real mechanic to be quite useless because you can use it an infinite number of times without penalty. There needs to be a limit to that mechanic, so that players have to memorize the platforms that are real, rather than being allowed to spam it all they want. The platforming was fun, but I think the number of wall jumps you can use in succession should be fewer. If you keep going with this game, this might become popular in the speed-running community.
I hope to see a finished build of this game some time.