While the handheld video game — first launched in 1996 for Nintendo's Gameboy — allows players to stay in one place, Pokemon Go is played on an Android or iPhone requiring "Pokemon trainers" (users) to travel around and "catch them all" in the real world. Using GPS, the game detects where and how far along players are in the game and then depicts Pokemon on the user's phone screen to capture with the original red and white "Pokeball." A variety of Pokemon are available in the game depending on time and location. Players can also gather more Pokeballs and tools at "Pokespots" around the area and can train their Pokemon and battle it out with members of opposing teams at local gyms.