Complete each requirement to receive the Trophies. There are 3 Silver Trophies.

Trophy	How to unlock
Peggle Ph.D ( Silver )	Complete the Peggle Nights Adventure mode. You'll know everyone at the Peggle Institute!
Purple Necklace ( Silver )	Using Marina from Peggle Nights, hit 13 purple pegs during a single level in Adventure or Quick Play modes. Pretty!
Tenured ( Silver )	Complete all of the challenges in Peggle Nights Challenge mode.