Analysis of information sources in references of the Wikipedia article "Spillekonsoller (1. generation)" in Danish language version.
{{cite book}}: Tjek |isbn=: invalid character (hjælp)Nintendo entered the home market in Japan with the dramatic unveiling of Color TV Game 6, which played six versions of light tennis. It was followed by a more powerful sequel, Color TV Game 15. A million units of each were sold. The engineering team also came up with systems that played a more complex game, called "Blockbuster," as well as a racing game. Half a million units of these were sold.
{{citation}}: Mere end en |author= og |last= angivet (hjælp)Like Pong, Telstar could only play video tennis but it retailed at an inexpensive $50 that made it attractive to most families that were on a budget. Coleco managed to sell over a million units that year.