After you’ve cured the PO-KORONAN plague in the MNOLG, some of the recovered MATORAN characters start up a game of KOLI. There are four players in the ring. One is the guy who was standing in the ring before you cured the plague, one looks like HAFU from the MNOLG (though he’s still out carving signs at the crossroads) and the other two (one looking straight at you and the other with his back to you) are this guy.

Later, you can see this guy again in the HAFU video during the scene just before the TAHNOK burst through the gate.