Harley Quinn's Revenge Incident
Arkham Knight Incident
They could be used whenever you played as Robin. In Predator Mode, they instantly knocked out their carrier, but could not be planted on downed enemies. In combat, they could be planted on downed enemies, but could only knock down their opponent.
- Due to similarity in function, it's possible they could be derived from Batman's Concussion Detonator gadget.
- When detonated, Snap Flashes add combo multipliers to the combo meter. Robin is, however, vulnerable when he attaches Snap Flashes onto enemies as it is quite slow.