I believe that Duel Links actually follows the OCG Rulings and thus she can attack directly regardless of opponent monsters.
Pretty sure my VW tag deck (Fusion tag to bring out VWXYZ with just VW and another monster) only works because of that.
Japan used to have a ruling that said that a Defense Position Rampart Blaster could only attack directly if the opponent controlled no monsters, while the TCG ruled the opposite. The TCG later changed it to the Japanese ruling, so the rulings became same for both the OCG and TCG.
......But then, more recently, Japan has changed their ruling to allow Rampart Blaster to attack directly regardless of opponent's monsters, thus the ruling conflicts AGAIN.
Goodperson25
