You need to press the button as many times in 30 seconds as you can. That's it. You can rival with other people via internet.(Global score table) Feel free to post your ideas in comment to improve this game.
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Free Sonic Mania Plus apk download android mobile Free
Sonic Mania Plus mobile download for android and ios phones and tablets
Sonic and Knuckles Sonic Free
The game follows both Sonic the Hedgehog and Knuckles the Echidna in their respective quests