Sunshine is a skill game in which you will help the photons reach all the golden stars from the universe and then reach the portal. To open it you need to collect a certain amount of stars but if you get them all it will be a perfect score. For a three star rating on all the levels you need to move fast and get all the collectibles. Try not to get sucked in by the black holes or you will need to restart the level. The longer you hold the click for the jump the higher your photon will go but be careful as there are many gravitational fields that will pull you in all the directions.