Nevermind, it seems my RAM is full so the game doesn't have space.
after played it I will say the control is really cranky, the attack are too slow, when you hit the enemy, there's no time for you to dodge the enemy's attack.
The wall jump is hard to use, not to mention the character can slip when near the edge which makes it even harder.
you can only jump while on the ground, which makes it hard to jump between gaps, I can't count how many times I have fall into holes one way or another.
there's not much things to do currently, I think you only make attack, move, jump and wall jump, and shift, F, Rmb, R and l has no use for now.