I'm actually against guest-versus-guest Pokémon competitions in the park unless they put a lot of guardrails in place. When it comes to video games, many people don’t take losing well, and in a theme park environment, it’s not safe, especially for a family-friendly IP.
I think the Pokémon-catching aspect isn’t that hard. You could use land animatronics with RFID sensors, similar to the wands in the form of Pokéballs. That’s how you could catch the common Pokémon, the popular non-rare ones. You could also create an indoor walking attraction utilizing screens and animatronics, like a safari zone or Poké Park. Once a Pokémon is caught, it wouldn’t appear for a set amount of time, creating a challenge for visitors and encouraging repeat visits.
With screens, you could include many more Pokémon. Since there are over 1,025 Pokémon, fans would be upset if their favorites weren’t represented. For example, if you want to catch Mew, you could, but Mew would only show up twice a day. You could also include shiny versions.
You could sell multiple types of Pokéballs to give visitors a challenge, with each type offering a specific chance of catching a Pokémon, just like in the games. The Pokéball could light up and shake if the Pokémon is successfully caught, and it would then show up in the app. The Pokéball could also act as an amiibo and connect to Pokémon Home, though it wouldn’t work the other way around.
For battles, staff could act as trainers, Elite Four, Gym Leaders, and so on. Visitors would need to train their Pokémon first, so you could have a Pokémon Training Camp, an all-age play area where guests scan their Pokéballs to train Pokémon in strength, agility, and other skills. This area would have activities for all ages.
After training, guests could go to a kiosk to register a six-Pokémon team and battle a staff member. Battles could scale based on the player’s skill. Holographic Pokémon would work better than AR for these battles, and the kiosks could also allow Pokémon trading.
As for rides, I’m still against Pokémon Snap—it’s basically another shooter ride, and for a video game IP, we need something fresh. We need something thrilling but family-friendly, like Spider-Man, to appeal to the masses. You could also have a Gym Show, a huge animatronic spectacle on the level of Waterworld, where Pokémon come to life.