This is a classic action packed SEGA game, join Sonic the hedgehog and his buddy Miles/Tails Perhour on a new adventure to stop Dr Robotnik and his evil scheme. This game also has all new zones and trickier special stages but it's all worth it to get SUPER SONIC (to get super Sonic you must get 50 rings then find a check point there will be some sparkles, jump in to them to enter a special stage, complete the stage repeat that 7 times) I hope SEGA puts Sonic The Hedgehog 3 & Knuckles for mobile