Actually if u can using GG, its just easy to hack, u just need search value with x4 or x8 after value, unfortunately its too hard for add items that dont exist, so u need find that items first...
And for gems just using http canary, u can download it from chrome, but i think gems didnt really useful anymore after hacking items...
And for fast game for search item u just neede to hack damage, and u can find it from yt if its hasnt deleted...
And one more, for gladiator coin u can hack it from using http canary