How to i make the collision mask fit the body of the character? Its always square. How do i make it same with the character body?
Edit the collision mask in the object editor 
You can make a square mask that fits better to the object shape, other types of convex masks or multiple masks if you need them 
Ill do it manually? I made the collision mask square and smaller. But my character can stand in the middle side of a block
Yes, you’ve to do it manually. Check if the character collision mask fits right and the same for the platform mask.
Whats platform mask?
If the platform object (the green quads) are sprites too, you should check if their collision mask fits with the shape.
Okay thanks