Subaru, On Air!!

Synopsis

While experimenting with his new powers as Mega Man, Geo eavesdrops on the AMAKEN Labs and witnesses Tom acting paranoid about his new invention. Following him to the mountains, he witnesses Tom using the Flying Jacket. When Geo tells Aaron of the invention, Tom assumes Aaron is trying to steal his invention, and thus merges with Cygnus to attack the labs. (Source: Wikipedia)