Ratchet and Clank Future: Tools of Destruction and Gran Turismo 5 Prologue, two premier PS3 exclusives, are now on sale for 75% off at the popular North American retail chain, Target. The games' prices have been axed from $60 and $40 to $15 and $10, respectively. It's likely Target is putting these on sale to make way for the Greatest Hits editions, which are due to hit shelves any day now.