The larger would be Snorlax, sat down next to Blastoise. She looks at Dragonite as he approaches her, giving him a greeting in return with a fanged smile. She's a rather stubborn pokémon by nature, but there's nothing to be stubborn about with meeting a fellow pokémon! Blastoise too gives him a greeting when he comes over, striking up a conversation with him. So you just got here, huh? How long've you known the professor? Chatter chatter.

Pikachu will allow the petting, being used to receiving it from strangers - though the professor isn't a stranger. Kind of.

"Just today? We can help you out if you need it." He can't help but want to offer his help out to the professor, part of him certainly not wanting to see him leave too soon. "We know the way to the apartments from here, and the hospital and the shops. We come here regularly to train - it's got the most space of the districts."

Here being a spot close to the park, which Red points over towards. "There's a park over there, and a sports building's nearby too. You'll see a lot of pokémon-like animals wandering around, but nobody calls them pokémon here."

Is he actually excited despite not being recognised? Just a teensy bit.