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2017 ambiguous_gender angel_island animated animated_gif bolt_(fastener)brick chaofanatic chaos_emerald claws eulipotyphlan fire floating floating_island floor gem glowing hedgehog inactive machine mammal master_emerald mecha_sonic_mark_ii powering_up rivets robot robot_anthro sega short_playtime solo sonic_the_hedgehog_(series)super_mode unfinished wheel