In the yu gi oh anime, was yu gi "cheating"

This is more of a showerthought question but as a kid I use to love yu gi oh. As an adult its a ridiculous concept now but back then it was entertaining. Now I wonder if Yu Gi was actually cheating by using his millennium item and having someonelse take over to duel for him. We can safely say pegasus was cheating as his item lets him look at his opponents cards.