Satoshi Tajiri (Japanese: 田尻 智) is the creator of Pokémon.
When he was young, he loved to collect insects and trade them with other insect-collecting friends. Sometimes, they would enjoy watching the bugs they'd captured fight against one another. Satoshi also loved to play videogames (which were obviously very different to our modern-day ones because there was no Gameboy Advance in those days) he also liked watching Japanese monster movies.
When he grew up, apparently, Mr. Tajiri combined his three childhood passions and started creating his Pocket Monsters (Pokémon for short) with Creatures Inc (which he founded) and started producing the video games with the Game Freak company.