Tate and Liza/Anime

Tate and Liza debuted in It's Still Rocket Roll to Me. Their father Jin is the director and an astronaut at the Mossdeep Space Center and often goes into space to search for extraterrestrial Pokémon. As a result, they often spend time at the Space Center, and even have s in simulated zero-gravity conditions, which they accomplish by using their 's technique to levitate them. In the anime, Liza is revealed to be the older of the twins (by around a few minutes).

When and  visited Mossdeep City, Tate quickly befriended Max since they had a few things in common, including Max's issues with his own sister. Likewise, Liza related with May, and showed the group around the facility.

Later, while Tate and Max were hanging out in the cockpit of the space shuttle, infiltrated the area with the intent of stealing it. Tate and Max were unaware of this until the trio reached the cockpit, whereupon tied the two boys up with rope. Fortunately, Ash's Corphish was aboard the shuttle as well and freed the duo, who promptly knocked the trio out. Afterwards, Tate and Max safely landed the airborne shuttle. Team Rocket was then attacked by a vengeful Liza and May, who used their and, respectively, before Ash's Pikachu sent them blasting off.

In Solid as a Solrock, Tate and Liza faced off against Ash in a Double Battle, in which their Lunatone and, respectively, went up against Pikachu and. At first, the twins continuously argued with each other, which allowed their opponents to get hits in. However, after another attack by Team Rocket, the twins managed to work together and set aside their differences.

In the battle that followed, they showed an incredible ability to balance each other's Pokémon, forcing Ash to use unorthodox tactics in order to defeat them. Eventually, Pikachu and Swellow used the former's attack as a makeshift armor, and with this newfound power, they easily defeated Lunatone and Solrock, earning Ash the.