This is a game that really feels complete! The storyline is great, the characters have varying personalities, the levels are well made, the textures are consistent, the sound effects, documentation, and texture effects are incredible - and best of all, it's quite fun!
The quality opening sequence is also something that I believe defines this game and makes you feel part of your own character. Well done, Wuzzy!
I wish that this game was longer, because it is really a joy to play (being a parkour fan myself :)). As mentioned, the slide controls are somewhat erratic and it takes a bit of experience: after a while, it becomes somewhat consistent if you use Shift (Sneak) in combination. It can also be somewhat confusing when you can use E to 'dash' and when you can't: on slopes, the dashing often doesn't work but (if you glitch? :)) it does work from time to time. On solid blocks, it usually always works in the right areas. If you get going downhill, you probably won't be able to stop yourself, as velocity increases like crazy.
EDIT: After finishing the game I have nothing but more praise for it: this is extremely well polished and has a wonderful ending that is amusing and proves a very difficult puzzle! This is my personal pick for the best game of the Jam. I enjoyed it immensely, thank you Wuzzy!
Indeed, the powerslide controls need work. The trick is that you hold down Aux1 pressed BEFORE pressing forwards, but even that is not 100% reliable. The reason why the powerslide does not work on slopes sometimes is also weird. It's probably related to how stepheight in Minetest works. Once you got the ability to slide on tall slopes, you can powerslide on slopes just fine. That's not really intended, I wanted to make powerslide work on all slopes, always. Will try to fix this in the next version.
Edit: Pressing Shift doesn't affect the powerslide at all tho. Just to clarify.