A Pokemon is an animal like creature.They are not real but are on games. An example of some of these games are: Pokemon go, lets go Pikachu (on Nintendo switch), lets go Eevee and many more! Pokemon are used in movies like Detective Pikachu.

In lets go Eevee and lets go Pikachu you have a Pokemon (Eevee in lets go eevee and Pikachu in lets go Pikachu) and you have to battle Pokemon to continue further (Pokemon cant die they just faint).

There is a team called Team Rocket and they try to take your Pokemon but you can battle them and if you win they leave you alone for a bit.