"According to those who have witnessed the event, an unknown citizen gathered the seven Yashichi and summoned Dragon Sky in an attempt to open portal to the land of Mega Man Legends," one of the Berbils answered, "But RPM citizen mis-phrased the wish, causing Dragon Sky to merge the worlds into one."
"Dragon Sky did not appear to be happy with being summoned for such a pointless wish and refused to wait for RPM citizen to correct his wish," another Berbil continues, "But Dragon Sky chose a bad time to depart when Glyde Family showed up, overheard his ability to grant wishes, and used their radar to hunt down and gather the seven Yashichi. Once Glyde Family summoned Dragon Sky, Glyde Family tricked him into wishing away Dragon Sky's memories, turning Dragon Sky into mindless beast that obeys only Glyde Family."
"According to current observation, other RPM citizens are unaware of what has happened, and have chosen to survive anyway they can," the third Berbil finalizes, "But those who have witnessed it worry that there may be a side effect to making Dragon Sky grant wishes without frequent breaks, and have gone off to figure out a way to free him from Glyde Family's clutches and reverse the amnesia they have tricked Dragon Sky into granting upon himself."