This is the route that I have started using to achieve all characters in as little time as possible I will update it if I make any changes
Mario Stadium I • Blue Noki – different swings • Green Noki – charged pitches – leave Mario Stadium
Yoshi Park I • Shy Guy Ferris Wheel – go down pipe and unplug nunchuck • Magikoopa For Yoshi – different pitches – use shy guy • Pink Yoshi – super dives • Leave Yoshi Park
DK Jungle • Dark Bones Encounter – Different pitches • Get Tablet then DK Encounter – Get an out – Switch to Mario • Climb down vines and do kritter encounter – hit to left – no nunchuck • Second kritter encounter – Hit a sacrifice fly • Baby DK encounter – buddy move • Funky Kong Encounter – Charge Pitch Out • Beat Bowser Jr. • Kritter by pipe – double play • Kritter by chest – Don’t let them score • King K. Rool – Home Run – Funky or DK
Wario City • Goomba • Magikoopa – sweet spot hits • Wario • Boo – laser throw – King K. Rool • Waluigi – home run – King K. Rool • Blue Boomerang bro – Buddy Move – Mario (gives chance for noki at second for ball dash out) • Paragoomba – controller plugged in – ball dash
Peach Ice Garden • Toadette Puzzle • Purple toad – Bottom right bush – get three hits - Mario • Dry Bones – Buddy Move - Mario • Green Toad – Top left bush – Bunt x 3 - Mario • Hammer Bro – Unplugged – get an out - Mario • Toadsworth • Bowser Jr • Blue toad -> baby daisy -> yellow toad – controller unplugged – sac fly – Mario • Baby peach – quick throw • Statue • Rattle • Daisy • Petey piranha – Hit to all fields • Baby daisy
Yoshi Park II • Green Magikoopa – Tongue Catch – Yoshi for next 4 encounters • Yellow Yoshi – squeeze • Green shy guy – unplug – double play • Gray shy guy – buddy jump • Yellow shy guy – hits to center - Mario • Get brush • Birdo • Red Yoshi • Blue Yoshi – Questions • Wiggler – hit to all fields – Mario
Wario City II • Billboard • Green Koopa – quick throw – Baby Peach for next 4 encounters • Beat Bowser Jr • King Boo
Mario Stadium II • Red Noki • Magikoopa – star pitch out • Baby Luigi • Blooper – double play • Bowser junior • Monty mole – quick throw • Pianta in tree – tongue catch - Yoshi • Pianta in shop • Barrel Pianta – squeeze bunt - anyone • Leave as DK
Bowser Jr’s Playroom • Score one run then make outs as quick as possible by bunting • Goal is to win game 1-0
Bowser’s Castle I • Score 10 runs in first inning then shutout Bowser’s team for a Mercy rule • Alternatively, follow same strategy as done in Bowser Jr’s Playroom
Bowser’s Castle II • The remaining 12 characters are locked behind beating bowser for a second time, so we need to repeat what we just did. • After the cutscene plays, be sure to save and quit then reload the game. • The strategy for Bowser 2 is the exact same, but mercy ruling him is much more difficult than before so the Bowser Jr. strategy would also work • While setting your lineup you can make players "star" players by pressing 2 over them. This makes them much better