Chee-Chai Alien and Pokémon Trading Card Game 2: The Invasion of Team GR! In Chee-Chai Alien, we created a game to discover aliens using light. You can capture tiny aliens by holding the Game Boy Color's IR sensor over a lamp or remote control. It had a great story of playing to rescue them from a dark universe. "Existence is light. There are creatures in the light. This discovery is one of the themes." (Hirokazu Tanaka) (February 27, 2001). In Pokémon Trading Card Game 2: The Invasion of Team GR!, we included twice as many cards as the previous game so that players could enjoy more advanced deck building and battles. (March 28, 2001)