'Aqua skipper' that moves on the water manually

What is this?

aquaskipper.jp --Fitness while having fun with aquaskipper!
https://www.aquaskipper.jp/

Machine 'Aqua Skipper' that moves around on the water by human power | Srad
https://srad.jp/story/05/07/18/1114253/

According to skimsr, 'American-made fitness machine' Aqua Skipper 'has been on sale in Japan since this summer (reported in various media).
'Aqua Skipper' is a machine that can move around on the water manually. Fins that generate buoyancy and propulsion are attached to the front and back of the bicycle-shaped frame, and when a human makes a vertical movement that jumps on it, the vertical movement is converted to propulsive force by the movement of the fins via the spring. do. Please refer to the linked video for the situation, but it seems that if you get used to it, you can go on the water at a considerable speed.

...... I wonder if I will get angry if I use it in the pool (get out)