Time Stopper is Flash Man's signature weapon in Mega Man 2 and Mega Man: Dr Wily's Revenge. This weapon allows its user to slow time and freeze most units while the user can move.
When activated, Time Stopper creates flash particles that indicate it being in effect. It is not meant as an attack weapon, but a means to bypass obstacles. The weapon quickly deplenishes during its use as it did in the source material, but it can be stopped at will. Its freezing properties remain when the player character moves to a disconnected screen.