Blue plasma bomb

Blue Plasma Orbs are objects that appear in Sonic Dash 2: Sonic Boom.

Overview
Blue Plasma Orbs appear only during the events where the player has to hit Eggman a certain number of times. The blue orbs will hurt the player if they just run into them, but if the player spin dashes towards them, they will launch the orb back at Eggman, which is the method to hurt the doctor and finish the event's task.