on its release in Japan. Connectivity with the
Pokémon Game Boy games is available using the Transfer Pak (bundled with the game) in the same way as the internationally released
Pokémon Stadium.
HAL Laboratory president
Satoru Iwata, who would later head
Nintendo itself, ported the battle system to the Nintendo 64, taking a week to read the entire Game Boy
source code before converting designer
Shigeki Morimoto's programming from the
Pokémon games. Iwata fixed compatibility issues with the Game Boy games and
Stadium single-handedly. Because of technical limitations, only 40 Pokémon are available for battles, instead of
the full 151 Pokémon from the
Game Boy versions as originally planned. Once intended as a
64DD launch title with a March 1998 release date, the game was intended to take advantage of the 64DD's functionalities by allowing players to use Pokémon both on the go and at home.
Stadium was eventually converted to a standard
Nintendo 64 game on a
32 MB cartridge.
Pocket Monsters Stadium'' was released only in Japan on August 1, 1998. A reported 270,000 copies of the game were sold in its first month of release, and it accumulated 400,000 copies by October of the same year. == Reception and legacy==