Complex sentence: These ideas drove the decision to retool the fighting system, which was criticized in past iterations for being too complicated for casual players, through the implementation of the three-button attack system from "Tatsunoko vs. Capcom" and the addition of Simple Mode.
Split into simpler sentences: These ideas drove the decision to retool the fighting system, which was criticized in past iterations for being too complicated for casual players. These changes include the implementation of the three-button attack system from "Tatsunoko vs. Capcom" and the addition of Simple Mode.