Enter this on the 'Password' menu: 595313131313131
This code will unlock all cheats.
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The code to unlock shadow on ultimate flash Sonic is 595313131313131.
the ultimate password is 595313131313131
Sorry, but there is no character as 'super sonic' in the game ultimate flash sonic, the only unlock-able characters are Amy Rose and Shadow The Hedgehog. For all the unlocked characters+all cheats+the full Juke box type in the password 595313131313131.
Well...I Don't Know What Flash You Are Talking About But If You Are Talking About Sonic Ultimate Flash,Here Are The Cheats. UNLOCK ALL CHEATS:In Password Enter:595313131313131,Cheats Are,Sonic Run 2,Tails Follows,Behind,Big Cheese,Moon Gravity,And Jukebox.
there are no cheats for it because it is an online flash game and there are no characters to unlock so you cant cheat, also you should just try and complete it :)