Shocking Exile is the fifth stage in Coup de Chat. This stage is a remake of Torture Room.
The Face spawns at the start of the battle, followed by a legion of CyberFaces after 33.3 seconds1000f.
The gimmick and strategies applied here are somewhat similar to Torture Room.
Just use Fishman and boost it with combos, you will be fine.
Other units may be Octopus for defence, Maglev for extra DPS (same for Power Cutter), Balrog or Awakened Bahamut.