The enemies are also unique, featuring prehistoric animals, Chinese dragons, and alien pods.
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The machines also appear in the Dreamcast game Shenmue, in which the main character Ryo Hazuki could spend yen to collect various figurines, including series of characters from the Virtua Fighter and Sonic the Hedgehog series of games as well as those of other known and lesser known Sega franchises (i.e. Fantasy Zone, Space Harrier, Hang-On etc.).