Expansions
A new addition of the game is the ability to expand the game using plug-ins released for download which would add new features, such as new facilities (e.g. additional shops, restaurants, and services, ranging from a Glico store to a swimming pool), new events, billboards, and movies, as well as other aspects of gameplay. Inspection of the game's official website through web archives indicates that although the American version never got any true additions, the Japanese version got several updates, including new movies and locations. However, none of these appear to have survived when the official websites relating to the game and its developer OPeNBooK9003 went offline between the years 2001 and 2002. Through translations on the Japanese downloads page, an Austin Powers movie can be downloaded.
The original Tower II game came with Tokyo and Hawaii. The American version had Tokyo, Hawaii, and Kegon Falls. However, unlike in Japan, America did not get updates. In Japan, each expansion pack was sold under the Towerkit title.
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