[Waterluvian]

This was one of the best toys I ever owned as a kid and I desperately want to find one for my kids at non-collector prices.

Also I believe it has two sequels that you can Voltron together into an epic gauntlet.

[aa-jv]

You can see all of the games linked together on the Japanese site:

https://www.takaratomy.co.jp/products/athleticlandgame/

Also quite impressive, the linkage is backwards compatible with all of the previously-released versions too, from decades ago ..