| http://www.w3.org/ns/prov#value | - Earn credits and upgrade your ship with new weapons, equipment, and abilities.ADDICTIVE power-up system that will keep you coming back for moreUPGRADE your ship with over 20 weapons and abilities such as hellfire missiles and call for reinforcements.ADVANCED GRAPHICS that will take advantage of your new mobile deviceCLASSIC space shooter game mechanics familiar to retro gamers and fans of the SHUM
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