Mario Tennis Open secrets guide

Gamesradar teams up with GameXplain to bring you the best Mario Tennis unlockables

Gamesradar has partnered with GameXplain to bring you even more cheats, guides and video walkthroughs. Today we’ve served up all the hidden courts, secret characters and ace difficulty levels in Mario Tennis Open for 3DS.

With these tips you’ll be able to play as your favorite Mario characters on some cosmically awesome courts. If you want to see more of this new Mario sports title, check out our review.

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