With 'Pokémon: Detective Pikachu' hitting cinemas this week, it's all about those fictional creatures aka pocket monsters at the mo.

With Pokémon having been around since the 90s, the movie is a nostalgic throwback for many of us. Some grew up with the Game Boy games, others with the TV series. Others still indulged in the trading card series.

It's kind of bonkers to think that two decades on, Pokémon are still hugely popular, both among a new, young generation and those who loved the creatures in their adolescence.

To mark the release of 'Detective Pikachu', we're sharing 12 useless pieces of trivia.

 

1. There are 809 fictional species of Pokémon.

2. They were created by Satoshi Tajiri, who was inspired by his childhood pastime of insect collecting.

3. The first Pokémon ever designed was Rhydon. Though he went through various treatments, the final design of the creature stuck pretty close to the original.

 

4. Meowth almost appeared in the first Smash Bros. Instead, Pikachu and Jigglypuff were the chosen playable characters in all three releases of the game.

5. The bird that Ash see on the first day of his journey in the TV series is a Ho-oh. Ash doesn't see a Mew until the first movie, and he sees a Lugia for the first time in the second movie.

 

6. The first legendary birds each have a pun you might have missed. Their names gestures towards the Spanish words for one, two, and three. That would be Articuno, Zapdos, and Moltres.

7. Brock has opened his eyes on three different occasions in the anime. They were always in service of a joke, but super creepy looking, so generally they're avoided.

8. Instead of Pikachu, Ash was originally going to be accompanied by a Clefairy on his adventures. This was changed before the show started airing, though in the Red/Blue manga, the Ash surrogate is accompanied by a Clefairy.

 

9. As of 2018 the Pokémon anime television series has produced and aired over 1,000 episodes, divided into 6 series in Japan and 22 seasons internationally. It still follows Ash Ketchum (known as Satoshi in Japan) in his training to become a Pokémon Master.

10. Between 1998 and January 2019, 22 animated Pokémon films directed by Kunihiko Yuyama and Tetsuo Yajima, have been distributed in Japan. ‘Detective Pikachu’ is the first live-action one.

11. Pokémon have been in trouble with PETA in the past, who have criticised them as supporting cruelty to animals. They compared the game's concept of capturing animals and forcing them to fight, to cockfights, dog fighting rings and circuses.

12. Pokémon is the highest-grossing media franchise of all time, with $90 billion in total franchise revenue. It is the world's top-selling toy brand, the top-selling trading card game, and its anime TV series is the most successful video game adaptation.