Sequel to Tested on Animals, TOA2: Year of the Rat gives you the chance to play the Rat Baron and stop the lab animals from escaping. You are tasked with returning these poor, confused creatures back to the safety of the laboratory. Use your plane to capture the high flying animals but fly too high and your engine explodes. Fly to low and you'll crash into the ground. Pop the balloons by hitting with your plane. Consistently destroy more balloons than you miss to prevent the animals from using them to escape. Once the animal indicator reaches the ground they will be recaptured. Avoid your fellow rates as they aren't the smartest creatures and are likely to be more of a hindrance than help.