this might be more complex but you could add buttons that could connect to other objects, like when the ball touches the switch/button it could activate a door or something else

i know how you feel but if i were you i would advertise for a graphic designer on this forum or buy some graphics pack, sometimes you have to spend money to make money.

Could you not temporarily assign gravity to 0

Ok that seems reasonable, also i would focus on one art design rather than the mix that your game currently has.

It depends how much and what for if you have a price list it would help for me to understand more.

Search facebook developers share button, and facebook sharing checklist and you should find all the information you need, and it seems it is legal.

Does each action progress time or is it only when all actions are completed because you could have gradual lighting changes and make an an animation for sprites such as sun and stars

If its not too late i would get rid of in-app purchases and just make it a one time payment, this makes the game more user friendly.

You could add objects that could speed up and slow down the ball, like the goo from the portal games, you could also add natural objects that can destroy the ball such as fire, also a form of cannon that fires the ball when it collides with it.

What exactly do you need help with, i'm not very experienced either but will be willing to help.

Hey i'm Callum,

I've always thought about indie making games in the past and recently heard of Construct 2 from NerdCubed so decided to give it a shot.