Few issues. How does one get past the starting area when the character doesnt jump high enough. And looking at the controls, x does nothing. I really like how this game looks, i just need some help here as i feel a bit stupid.
Assuming that you've met the character in the first room and you're trying to get over the 4-block high wall that's next to them, try pressing X while holding left. The slide can only be performed when moving.