1990 Incident

1990 (Difficult Touch)
On January 15, 1990, 1990 Incident was known as Difficult Touch for the prototype.

1990 - 1991
The logo was revealed on August 15, 1990. The wordmark changed to be 1990 Incident, with 2 red shines in the center of "0 (zero)" and "D". Set on a black background with the sets of white moving dashes to look more like a Y-grid. Then at the start of the incident, on October 1, 1990, another variant with the scroller about the incident as the text at the beginning was seen. The incident was stopped on March 1, 1991. The last day is February 28, 1991 (Duodecember 28, 1990).