Unlike the Kamen Riders of the past, instead of a motorcycle, Aqua's Rider Machine is a jet ski called the Aqua Miraider. However, technology from the future allows it to go on land and soar in the air. Miraider is a portmanteau of Mirai (which means Future) and Rider. Kamen Rider × Kamen Rider Fourze & OOO: Movie War Mega Max