Long ago, far away in space, there existed a "Fantasy Zone" where a courageous hero called Opa-Opa (The Player) fought in a valiant cause to rescue the "Fantasy Zone" from it's enemies. In the space year 1422, the interplanetary Monetary System collapsed, causing all of the planets to become panic-stricken. According to an official inquiry made by the space guild, someone is leading the Menon planet forces, using them to steal the foreign currencies of the other planets, and with the funds. Construct a huge fortress in the "Fantasy Zone". To put an end to their ambitious plans, Opa-opa promptly takes off for the "Fantasy Zone" where....
source: mameinfo.dat