There are also Pokemon that are not Flash-born that you can battle, which use Trainer Battle scripts and have customized movesets and things like that, but you generally find them during storyline progression, and not randomly waiting around for you to pass. Other than these swarms, there are also "Boss" Pokémon which are somewhat like Gym Leaders, in that they need to be defeated to progress, and unlock access to using HMs in dungeons.
Some of these traps are avoidable, while others are right in the path of where you need to go and must be tripped in order to advance. Dungeons, as well as mini-dungeons, have "trap squares," one kind of which triggers a "Flash-born swarm" - a group of random Pokemon that you must fight in order to progress. "Mini-dungeons" - small areas on the overworld map - have no puzzles beyond a maze, and are simply there for you to fight stuff and collect items. Routes, caves, and other related areas have been replaced with what's best described as a hybrid of a PMD style dungeon and a Zelda-style temple - they have the layout of a PMD dungeon, but (most) include puzzles beyond being simply a maze that will require you to use your head to get through them. Towns have a focus on "natural" mapping, rather than the square Nintendo-style maps. Along your journey, you will encounter a variety of Pokémon, both recruitable and NPCs - from a mad Absol who delivers prophecies in gibberish and a Stantler obsessed with collecting human trash to a strange one-eyed Pikachu with wildly messy fur who cannot speak or understand what you say but is clearly not one of the Flash-born and an Alakazam who knows much more than he lets on to a blind, crippled Minun and the little girl Rattata he looks after and a Shiny Flygon who's been trapped in a pokéball for generations and has to come to the realization that his Trainer is dead.to the world itself, filled with untold mysteries, waiting for you to explore it and uncover just what lead to its current state.
Super Rising Thunder! is driven by its plot - which can get very dark - and its characters. The surviving forests, grasslands and plains have grown as well as they could wild and unrestrained by the hand of man Nuclear bombs from aeons past have turned human settlements into crumbling wastelands, and patches of land dead and barren of any life. There are wild pokémon known as "Flash-born" - half-mad descendants of those pokémon near blast range who managed to survive and reproduce - but none of them can be caught. As you travel across the ravaged land, you will encounter others who will join your party and provide their own unique skills.