The Ultrasonic Attachment is an attachment for the Spray Gun in Daxter. It is by far the most powerful attachment Daxter can earn in the game. It fires a light blue ball of energy that explodes when it hits the ground or an enemy.
It has a green, vibrating tube hooked onto the top of the sprayer vertically. The firing end of the Spray Gun looks different to possibly withstand the power of the supersonic attachment.
It can be used to break certain walls, jump higher in the air than Daxter normally could, destroy tough Metal Bug eggs, and affect boss bugs that most attachments barely affect.
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