Our hero sonic hedgehog is keeping his battle with dr robotonik eggman on. do you want to join the adventure with sonic on the plane? you object is setting against with dr. robotonik and his creatures as always. start the game with "play". you use "mouse" while moving and attacking. you can earn coins by shooting your enemies. you can buy new guns and become more powerfull. when you go for the next level, it will be harder than the previous one. you can buy "m" and "p" buttons at some chapters to provide a protection to your vehicle or upgrade your gun for a while. it is enough to press "space bar" to go for the next level. do not forget to monitor the energy of your hero from the green bar at the top of your screen. good luck.
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