Tower Climber Prototype

I'd prefer if someone uses the keyboard/arrows, if "jumps" could represent its up-arrow there. While the game looks cool in graphics and style. I was testing it on a basilisk-browser/windows8.1-laptop, in case you'd be curious on which devices it could be played. I adore that it's a webgame than just available for download & is "bit of climbing" on the walls a possible bug or using the arrow to "stick" where I recently jumped at that position, was originally planned when coding?

Releasing the left/right key, depending if I'm on a right or left wall ...will also let my protagonist fall down because of gravity happens. Anyway that game sounds cool especially that high jumping wasn't expected (it looks rather more unique than those "hops" within other games).