Complex sentence: The add-on pack for the PS3 version was also developed by SuperVillain; thatgamecompany was not involved in the development of either project beyond a design influence and art direction role, as they were busy creating their next title, "Flower".
Split into simpler sentences: The add-on pack for the PS3 version was also developed by SuperVillain. Thatgamecompany was not involved in the development of either project beyond a design influence and art direction role, as they were creating their next title, "Flower".