Automating 1,000 Trainer Battles in Pokemon Legends Z-A Using 3D Printer and Turbo Controller

Streamer ProfessorRex has transformed automation in gaming with an innovative controller rig designed to play Pokemon Legends Z-A on his behalf, all in pursuit of the highly sought-after Shiny Charm.

This popular Twitch streamer, recognized for his inventive approaches to Pokémon gameplay, engineered a device to tackle one of the game’s most labor-intensive challenges: defeating 1, 000 trainers to complete Mable’s Research. Rather than spend countless hours grinding manually, ProfessorRex implemented a turbo controller housed in a foam-padded enclosure, tirelessly pressing the ‘A’ button. Simultaneously, a Prusa MK4 3D printer was utilized to automate the pressing and releasing of the ‘ZL’ button, ensuring continuous targeting of opponents.

According to ProfessorRex, this creative setup permits his character to engage in battles non-stop within one of Lumiose City’s eateries, allowing for repeated challenges against trainers. This level of automation liberates him from the monotonous tasks that numerous fans have described as one of the most arduous requirements in Legends Z-A.

How to win 1000 battles in Legends ZA pic.twitter.com/rPsoh3E9y2

— Professor Rex🇨🇦 🔜 KALOS (@RexProfessor) October 19, 2025

Creative Solutions Emergence Among Fans to Complete Mable’s Research

Players are actively seeking shortcuts to navigate the extensive objectives required to finish Mable’s research, which is essential for unlocking the Shiny Charm — a pivotal item that enhances the likelihood of encountering Shiny Pokémon. While several have opted for quick spawns by utilizing the Z-A Royale at nighttime, ProfessorRex’s hands-free technique stands out as one of the most sophisticated solutions to date.

This innovative automation method has rapidly gained traction within Pokémon communities, with many fans commending its ingenuity. Yet, some critics have pointed fingers at GameFreak, arguing that they’ve crafted a gameplay loop so unengaging that players feel compelled to devise alternative means of playing.

In response to concerns, ProfessorRex emphasized that achieving similar results doesn’t necessarily require a $700 printer. A high-level Garchomp (his featured a level 100) paired with the Rocky Helmet item can easily dispatch every Pokémon at the Restaurant Le Nah, making this an accessible and effective strategy.

Additionally, this method conveniently serves as a lucrative way to farm in-game currency, adding even more value to the approach.

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