Main menu "Quit" option doesn't highlight when mouse over

On Rusme/Quit menu the mouse is not working. Maybe it is intended, but then it has to be consistent with other menus

When jumping while pushing down there is a strange smoke effect following the character

When the character is ducked down and moving there are some artifacts in the pixels

When ducked down I can not go up a leaning floor

When standing in the beginning of a leaning floor the character blinks

Would be nice if the checkpoints have an animation after the character has disappeared on them. Like if they were closing or something

What about making the camera to look more towards the direction the character is looking. Instead that the character is always in the middle?

When I jump just when I hit a jumper, I cancel the effect of the jumper, is this intended?

I love the effect when I am in the edge of a cliff :)