Here is the full list of all 15 Circuit Breakers trophies - there are 9 bronze and 6 silver.
Fire 30,000 Bullets
Kill 2,000 total robots
Complete Aldo's challenge board.
Complete Shelby's challenge board.
Complete Samson's challenge board.
Complete Tay's challenge board.
Complete Payne's challenge board.
Complete Charlie's challenge board.
Complete Erika's challenge board.
Die 200 times
Complete 50 rooms with 4 players
Get 100,000 total energium
Defeat 20 bosses
Complete 8 rooms in Arcade mode with all cores on
Clear 250 rooms