Came across a page for a new water blaster by Hasbro Inc. for 2023 on Target:
The Wave Spray appears to be a pump-action water blaster whose nozzles oscillate up and down during the pump-cycle to create wave-shaped streams. There appear to be three nozzles arranged in a plane that are powered by this blaster’s pump. How much and how quickly the angle of the stream changes as pumping occurs is currently unknown. Moreover, how useful this spray pattern is during battles remains to be seen.
More information to come when available.