Cross Fusion!

English version title - Cross Fusion! Netto and Meiru visit the Science Labs to witness Yuuichirou testing a new kind of battle chip, the synchro chip. However, a net-hacker soon attacks the labs, trapping everyone in a room without air! Soon after, they activate a dimensional area... in which Shademan and Beastman appear to steal the synchro chips! Netto decides to take matters into his own hands by using a synchro chip, allowing him to cross fuse with Rockman!