there's no cheat for bb g revelution u need is cheat engine 5.5 now ill show u the steps
step:1-open ur cheat engine 5.5
step:2-watever u want to upgrade do it like money or ur beyblades spped write it besiide hex then many result will come
step:3-battle (if u want money)or u can buy sumthing after that type the new money beside hex and press next scan 2 or 4 result returns double click them
step:4-watevr money u want type it on the type value then go to u gba and vala u have money that u wanted
if u want to change speed of ur beyblade first u fight then u type ur speed beside hex and go to gba and play if u get a hit that u will type it beside hex then press next scan 2 or 4 may return then double click it and type ur beyblade speed and go back and vala ur blade will be infinite(dont close ur cheat engine if u do ur beyblade will slowly like normal get lower and lower if u dont close it u will be infinite