Playing Pokémon Go while driving a car in Japan. Caption: “POPULAR — On the first weekend after its release, Pokémon Go fever sweeps the Japanese archipelago, along with problems. Screencap from ANN official YouTube channel.

After a viral launch in the US and most of the world, the Pokémon Go mobile augmented reality game finally launched in the birth place of its Pokémon characters: Japan.

The game, which Apple confirmed has broken its App Store record for downloads in the first week of release, is generating massive excitement from players and some businesses in Japan, and causing trepidation from others, who fear the game will disrupt their lives.

The game launched five days behind schedule in Japan on Friday, July 22 2016. Reportedly, the delay was stoked by fears that Japanese Pokémon Go servers wouldn't be powerful enough to cope with demand, after a leaked email revealed the locations where Pokémon was launching.

Pokémon Go is a free-to-play, location-based augmented reality game that was first launched in most of the world on July 6, 2016. Developed by Niantic Labs, players use a mobile device, connected to the internet to find and capture Pokémon characters in real-world settings.

The Pokémon franchise was created in 1995 by Japanese video game designer Satoshi Tajiri. Pokémon Go is based on the Pokémon multimedia juggernaut of anime and video games that first became popular in the late 1990s, where human players must find, capture and battle with fictional creatures called Pokémon, known as ‘Monster Balls’ in Japan.

The Friday, July 22 release in Japan resulted in immediate, widespread interest all over the country.

ピカチュウを沢山捕獲出来るという新宿御苑、ポケモンGOプレイヤーが殺到しとんでもない事にｗｗｗｗｗｗｗｗｗｗ pic.twitter.com/dvSmSS8EsX

— ポケモンGO情報局【PokemonGO】 (@pokemongohaijin) July 24, 2016

I heard that Pikachu could be caught in Shinjuku Gyoen National Garden [a popular park in central Tokyo], but there is just a huuuuuuge crush of people here.

Whenever a particular location became known as a hot spot for capturing rare and coveted Pokémon characters, it would become quickly overrun.

池袋西口公園、マジで大変な事になっているｗｗｗ#ポケモンGO pic.twitter.com/gNOjZWTsqA

— ポケモンGO情報局【PokemonGO】 (@pokemongohaijin) July 24, 2016

There is just an incredible amount of people in the park on the west side of Ikebukuro Station [in central Tokyo].

Neighbouring businesses also stand to benefit from the craze:

ポケモンGO聖地として認知された名古屋の鶴舞公園、本日もプレイヤーが殺到しコンビニの商品が徹底的に駆逐されるｗｗｗｗ#ポケモンGO pic.twitter.com/2QoYlwwehY

— ポケモンGO情報局【PokemonGO】 (@pokemongohaijin) July 24, 2016

After Maizuru Park in Nagoya has developed the reputation as the “holy land” of Pokémon Go, people have flooded into this convenience store, literally cleaning off the shelves.

Thanks to the mobile, ubiquitous nature of the game, Pokémon characters can be encountered almost anywhere where there is a GPS signal.

ケーシィ普通に乗客やん　pic.twitter.com/rrsWCOZPix

— モモ (@mm_tr_28) July 23, 2016

“Casey” is taking the train like the rest of us.

Other PoGo players in Japan have noticed that where you play the game makes a big difference in terms of how many of the creatures you might actually be able to catch:

Playing Pokemon Go in the countryside versus Shibuya. pic.twitter.com/PB2QRJg7Mu

— Japan Trends (@JapanTrends) July 25, 2016

Syrian artist's  @KhaledAkil viral images that have been using Pokémon Go images in July to raise awareness of the war in Syria have also been widely shared in Japan since the game launched on Friday.

シリアのアーティスト @KhaledAkil による作品、 ポケモンGo #PokémonGo でシリアの惨状を知って欲しい #Syria #PokemonGO pic.twitter.com/vZsTmeGUvX

— フィフィ (@FIFI_Egypt) July 24, 2016

Syrian artist @KhaledAkil has created Pokémon artwork to remind us of the ongoing calamity in  #Syria #PokemonGO

Just like in other countries around the world, there are some people that regard the massive popularity of Pokémon Go with alarm. Some religious sites in Japan such Izumo Shrine have banned the game.

On the other hand, Pokémon Go seems to be creating some absurd situations at other religious sites. One player noticed a very odd sort of Pokémon to be found at Yasukuni Shrine, which is devoted in part to memorializing Japan's World War II dead:

Yasukuni Shrine gym is ruled by a pokemon named “Long Live China!” Didn't see this coming! https://t.co/O5sn7DTknR pic.twitter.com/nJLB1XFa9g

— Yuji Nakamura (@ynakamura56) July 25, 2016

Some businesses take a more playful approach to encouraging proper etiquette and responsible gameplay.

Sign at Imayo Tsukasa sake brewery, Niigata: don't catch Pokemon here; they're crucial to the brewing process. pic.twitter.com/97qEw61bcd

— Eleanor Goldsmith (@zaichishka) July 22, 2016