Sonic and Manic play a game of virtual reality to enhance their pilot skills. When the two brothers decide to put their practice to use, they fly in a successful mission that intercepts a supply ship from Robotnik. To put the Hedgehogs game to an end, Robotnik decides to invade the simulated world and provoke a less successful outcome for Sonic and Manic.
Please solve the math problem below to unlock download mirrors for Sonic Underground.
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