Klonoa Beach Volleyball, is a sports video game developed by Namco and released for PlayStation. It is a spin-off of the Klonoa game series. Its release was limited to Japan and Europe only (with the characters speaking in English in the latter)
This is also the only Klonoa title to feature a multiplayer mode, allowing up to four players to compete in pairs against the other team using a multitap.
Source: Wikipedia, "Klonoa Beach Volleyball", available under the CC-BY-SA License.