Special Stage (Sonic the Hedgehog CD)

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The special stages in Sonic CD are slightly different to the usual Sonic special stages. They use a pseudo Mode-7 effect, and parallax backgrounds. Rather than collect a certain amount of rings or items, you have to destroy all of the UFOs flying around in the sky. When there is 20 seconds remaining, a blue UFO will appear. If destroyed, 30 seconds is added to the timer. If you touch the water,10 seconds shall be deducted from the timer.