Chronologically, Metroid Fusion takes place last in the fictional Metroid universe. The story centers around bounty hunter Samus Aran, who is sent by the Galactic Federation to the Biologic Space Laboratories space station to investigate an explosion. There, she learns that the station is swarming with organisms infected with X Parasites, virions that can replicate their hosts' physical appearances and memories, killing them afterward. Learning that the Galactic Federation plans to capture the X Parasites for further study, Samus must destroy the space station to protect the Federation from the underestimated destructive power of the X Parasites.
Like previous games in the series, Metroid Fusion is set in a large open-ended world with elevators that connect regions, which each in turn contains rooms separated by doors. Samus opens most doors by shooting at them, while some only open after she reaches a certain point.
The game features "beautiful" graphics and audio! The graphics are very nice having colorful and detailed backgrounds. The design reminded me much like the atmosphere in the Alien 2 block buster! I was also amazed by Samus's smooth and much framed animation! Also the introductory scenes are well designed and nice to watch. The sound features a few nice SFX and music themes which reminded me the Alien movies! Well not much to say about the intro music theme though.