Thank you! I will give it a try.
Currently I think it is because I made two levels in 1 scene, and there are too mamy moving parts.
Should not be a problem. Does all moving objects in your scene have a RigidBody2D on it? If not, you should do it ;)
I put everything on Box Collider 2D, so that probably is an issue. It seems to work though, so long as frames aren't dropped.
