Wikipedia
Spinjas is a ratcheted spinning top game created by Tomy and distributed in North America by Parker Brothers in the late 1980s. The game set was sold as a Battle Stadium plastic arena with two Power Winder launchers and two Spinja characters enclosed within the arena, which doubles as a storage case. More characters, launchers, and an oversized playing arena were also made available separately. The objective of the game, similar to Beyblades, is to load your chosen character into the ratcheting launcher and each player would launch their top into the arena at the same time. The tops would ricochet off each other until only one remained spinning or within the arena and that player was declared the winner. Unlike Beyblades, the tops are not customizable and are not associated with any other licensed properties.