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These colorful ninjas received a new training in JumpBall. This is the Tower Mode. Jump while dodging the spikes in order to reach the end of each stage. During the gameplay you only need to use two buttons: For jump and high jump. See how many points you can do, see if you can be a true ninja of JumpBall.

Πώς ενεργοποιείται

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 "MY GAMES" tab and start downloading.

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