The company is established in April 2011 by former staff of Irem Software Engineering Inc. ( Hereafter referred as Irem ) after the cancellation of multiple video games project as a result of the 2011 Tōhoku earthquake and tsunami . The name of the company is derived from " Granzella Revolution Army " , which appeared in R-TYPE TACTICS II - Operation BITTER CHOCOLATE - , a game from the R-Type series developed by the staff at Irem
2011 Tōhoku earthquake and tsunami
2011 Tōhoku earthquake and tsunami
Granzella