• built on a brand-new engine
• detailed story mode
• 9 stadiums (not clear if there are more to be unlocked)
• 4 players (2 vs. 2 / 1 vs. 2 or 1 vs. 3)
• offensive items (attack outfielders with bombs, ect.)
• day/night games
• team stunts in the outfield (Mario jumps on Luigi’s head to catch higher-flying hits)
• Wiimote swing for hits (based on timing/power)
• swing Wiimote to pitch, twist to throw a curve
• Every character has special pitching & batting abilities: Mario throws / hits a massive Fireball, Luigi uses the Tornado Ball, Yoshi has an Egg Rainbow move & Bowser Jr. sends splatters of paint everywhere which hide where the ball is.
• shake Wiimote to run faster, but not necessary
• Mario Stadium : Basic stadium with nothing added
• Wario Fare : (extra features not mentioned)
• Yoshi Park : A Yoshi Train drives through the out field. Hit the Baseball into Warp Pipes as well.
• Smooth Ground Stadium : Ground is slippery / Giant Mr. Freezies are in the out field.
• Chomp Desert : Giant Chain Chomps nip at players in the out field.

Information taken from latest Famitsu scans.

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