You take a look at the BeastMon on the table from first to third, and take a look at Heatguana. Not only did Heatguana look based off of the main character on the cover, but she also looked cute, and energetic enough in combat. Bulbatoad, and Seatle looked like they could handle themselves, but you think a (Volcano Type) could do more damage.
"I choose this one," You say, and pat Heatguana's head. "Good choice, Lucy," Kao explains. "But once you've chosen your BeastMon, you can also name her." "I think I'll have her nameless," You say. "I don't want to get her confused with someone else I know." "Well then I choose this one," Rick says, as he goes over to Seatle as he just sat there, while he picked him up. Bulbatoad was the only one who wasn't selected, as he felt very sad. "Worry not, young Bulbatoad," Kao says. "I'll save you for Rick's sister Mary."
Professor Kao uses the Beast-Ball that Bulbatoad was in, and uses it to return him into it. "Well, thanks for the BeastMon, Professor," You say. "I'll definitely be protected from the tall grass now. Come on Heatguana, let's see what's outside Rainbow Town."