Birth of the Bullpen Cart
Bullpen carts are dedicated vehicles transporting relief pitchers from the bullpen to the mound. NPB introduced them in the 1970s with unique designs per stadium. At peak usage, all 12 stadiums had carts, but adoption declined from the 2000s. By 2024, only a few stadiums regularly use them. Discontinuation reasons include pitchers reaching the mound faster on foot and cart maintenance costs. However, MLB's Arizona Diamondbacks revived their bullpen cart in 2018, generating fan excitement.
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Evolution of Pitching Entrance Productions
Replacing carts, entrance productions evolved dramatically. Current NPB features player-specific walk-up songs as relievers approach the mound. SoftBank's PayPay Dome dims lights for closer entrances, with spotlights and smoke effects. Koshien Stadium's tradition sees entire stands illuminating smartphone lights for closer appearances. DeNA's Yokohama Stadium displays pitcher introduction videos on the main screen. MLB's Mariano Rivera's legendary Enter Sandman entrance influenced NPB's production evolution.
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Walk-Up Song Culture
Walk-up songs express player personality. NPB players typically choose their own songs spanning J-POP, Western music, and anime themes. Giants' Tomoyuki Sugano selects classical music, projecting mound authority. Hiroshima's Ryoji Kuribayashi's song changes generate fan discussion, reflecting high walk-up song attention. Songs transform stadium atmosphere instantly - fans recognize approaching pitchers by song alone. Rakuten held fan-vote walk-up song selection in 2023, earning praise as participatory entertainment.
The Future of Entrance Productions
Pitching entrance productions will further evolve. AR and VR immersive productions are under consideration. ES CON Field Hokkaido experiments with drone show integration using its retractable roof. Seibu's Belluna Dome introduced LED-powered full-stadium color change effects. However, excessive production draws criticism for disrupting game pace. Yakult's Shingo Takatsu states productions matter but must not interrupt game flow, balancing entertainment with competition. Entrance productions are vital stadium experience components with power to create lasting fan memories.