Yoko & Yuki: Dr. Rat's Revenge is a family game suitable for kids of all ages. Yoko and Yuki are two adorable cats in love with each other. But the devious doctor Rat stole Yuki from Yoko. Now it’s time to do some cat business — to save the girlfriend, use helpful gadgets, and find the solution to any puzzle.That is no ordinary cat — our hero is equipped with scissors to cut ropes, gravitron to flip the world, and spray can find hidden objects. And the game gets harder and harder with new puzzles and challenges. Daring players would be handsomely rewarded for using their wits and helping two cats to achieve their happiness!

Go to: http://store.steampowered.com/ and download STEAM client Click "Install Steam" (from the upper right corner) Install and start application, login with your Account name and Password (create one if you don't have). Please follow these instructions to activate a new retail purchase on Steam: Launch Steam and log into your Steam account. Click the Games Menu. Choose Activate a Product on Steam... Follow the onscreen instructions to complete the process. After successful code verification go to the "LIBRARY" tab and start downloading.