cross counter
A cross-counter is a counter-attack begun immediately after an opponent throws a jab, exploiting the opening in the opponent's position.
In fighting games, it is used in the same context, and it is sometimes mentioned in tournaments. Characters that have long attack animations, blocking the attack and then proceeding to counter attack while they are exiting the attack animation is considered a cross counter.
In fighting games, it is used in the same context, and it is sometimes mentioned in tournaments. Characters that have long attack animations, blocking the attack and then proceeding to counter attack while they are exiting the attack animation is considered a cross counter.
Roy's side smash takes a while to complete, so you can block it and cross counter before he finishes.