Here is the full list of all 12 Ricochet HD trophies - there are 4 bronze and 8 silver.
Awarded for collecting all of the gold rings in all Ricochet HD planets.
Awarded for finishing all Ricochet HD planets.
Awarded for completing all level sets in Cooperative mode.
Collect all 5 of the golden rings on all 10 levels of the same planet in a single game.
No power-ups collected for 10 levels in a row. This can carry over between planets.
8 levels in a row played on the same planet without dying once. Cannot be earned on Easy or Kids difficulty settings.
Beat 10 different levels on the Insane difficulty setting in a single game on the same planet.
30 levels in a row played without dying once. This carries over from one Planet to the next. Cannot be earned on Easy or Kids difficulty settings.
Beat 20 levels with two players playing at the same time in any multi-player mode.
Shoot 100 bricks with a laser, blaster or missile.
Earned when the player has caught 25 power-ups in the game.
Keep at least 3 balls on the screen at the same time for more than 8 seconds.