change attribute self.tapcount to self.tapcount +1

When attribute tapcount=2

Rule in moving actor: if starCount <4 every 1 second spawn star then do change attribute starCount=starCount+1 then it will only spawn 4 stars.

The actor has an attribute called self.tapcount it's an integer and starts at "0".

You will need to make a rule if overlaps or collides with platforms change attribute game jump to false depending on what your doing.

so I think the initial change may lag in the collisions but after a second it will work as the new size.

For instance. Say I had a 50x50 square, and i expanded it (grow) to 100x100, will any future collisions collide with the new size of the image ? Or will it retain its previous body size?

I have an attribute that is used to count touches, so that a double touch sends the user to a different scene.

So touch start it sets a global game attribute to 1 or something in the third invisible actor when that global attribute is 1 spawn actor 2

yes i did that and it will change the attribute to true when it collides but when the platform moves away it wont change back to false.

make a boolean attribute called collision set it to false

constrain self position x to mouse position x

Constrain the camera with attributes rather than the camera selection area thingy-ma-bob

constrain self position x to mouse position x

constrain self.position to game.touches 1X and Y... doesn't work on device. The actor can't catch up to my lightning fast fingers which honestly isn't really fast as I'm not very athletic.

in that rule put your animate behavior, and a change attribute behavior changing self.can touch to false

have 3 more change attribute behaviros and change attiubte self color blue to 0, self color green to 0, and change self color red to 1.

attribute -> self.canTouch is True

Create a boolean attribute called "can touch" then put all the rules and behaviors that you mentioned into a new rule that says: When Attribute "Can Touch" is true:

It would help to know how you are unlocking. I normally use an integer attribute and and add 1 to the attribute when each level is complete. If that is how you are doing it try adding this to the rule