Steampunk Voyage

To earn the platinum trophy in Steampunk Voyage, you have to destroy 20 pink beams of light that shoot up into the sky. To do this, first press Square and then Triangle to start flying. Then move with the left analog stick and ram into the devices making the beams of light, causing them to do a small explosion and stop producing light. Once you do this for all 20 beams of light, the platinum is yours.

19 of the 20 beams of light are easy to find, as they are visible from a long distance. If you are missing one, it is likely the one corresponding to the "Centrifugal", which is far to the right of your starting location.