Good work on the game so far. The engine definitely feels a lot smoother then before. Just a few crits for you:
1) I think she slides too much before she comes to a complete stop. You need to stop quickly to avoid falling into the lava pit or running into blades so its frustrating to slide everywhere
2) I had problems with the wall jump also. I think mostly because its counter intuitive to have to hold jump when on a wall, but press jump when i'm on the ground.
3) Im sure this will be fixed up, but the perspective feels weird on the ground. It looks very flat and 2d. Maybe some shadowing or proper ground tiles will fix that up.
Looking forward to seeing where this goes.