Camerica created many early peripherals for the NES, such as a wireless controller add-on. However, they soon let their license expire for unknown reasons, while leaving many of these products on the market. Nintendo filed a lawsuit early on and won, stopping the sale of many of Camerica's infringing products.
Since Camerica still lacked license to produce NES games, they had to create their own cartridges that would bypass Nintendo's lock-out chip. Like the circuit used in Color Dreams cartridges, the Camerica lock-out defeat generated glitch pulses that froze the chip. The cartridges they made were shaped slightly differently than Nintendo's cartridges, though they still fit in the NES. The most notable difference however was in color: all Camerica cartridges were gold and later silver. They also featured a switch for play on European NES consoles.