Our friends at GameXplain.com put together some handy tips videos to help you get through the Tennis Challenges in Mario Tennis Open. Each challenge completed will unlock a secret character like Baby Mario and Dry Bowser. Just follow the four videos below and you can't go wrong.
Super Mario 1-3 tips and walkthrough
Galaxy Rally tips and walkthrough
Click to the next page for the Ring Shot challenge and Ink Showdown tips videos.