Stay out of jab range, it's where a lot of hits can connect.
If he starts charging an fsmash, he’s stuck in place about to shoot a projectile. You can stand right in front of him and reflector, and he won’t be able to cancel it. Same with downB, locking him in place. These options make megaman into reflector food, and he’ll likely be resorting on neutralB and sideB after you punish these a couple of times, limiting his projectile options.
