In 1996, the Pokémon franchise hit the scene in Japan with its first two games for the Nintendo GameBoy: Pokémon Red and Pokémon Green. They were released at the same time using the same game engine, but with different monsters and plot; the idea was that players of the different games could trade monsters with one another, and it was necessary to trade with someone in order to collect all 150 Pokémon. (Mew, a 151st Pokémon, existed in this tier of games but was only given out as prizes for Nintendo Power competitions and other such promotions, or could be unlocked using a Gameshark or through a glitch near Lavender Town — coincidental to today’s video game urban legend.)
Lavender Town in these games was a sort of “graveyard” town, where Pokémon are put to rest in a Tower and hauntings by restless spirits of Pokémon are apparently relatively common; and it’s central to the myth that hundreds of Japanese children committed suicide in a spike in 1996, when the games were released, but only once they got to Lavender Town in their games. The myth has come to be known as “Lavender Town Syndrome”.