Poy Poy 2 is a 1-4 multiplayer action game, developed by Konami for the PlayStation. It was released in 1999, and is the sequel to Poy Poy. In Japan it is called Poitter's Point 2.
The gameplay is the same as in Poy Poy, though it features more powers and moves, as well as different characters and arenas. The characters use gloves, each with unique powers to aid gameplay.
Source: Wikipedia, "Poy Poy 2", available under the CC-BY-SA License.