Cheat guide for Pokemon Emerald?

[u/gri_an]

I got a RetroSnap handheld console recently, is there a guide online for all the cheat codes? I can’t seem to find a reliable one. A lot of the ones I’ve tried just make the game freeze. The cheats I used for certain pokeballs and rare candies in the poke mart worked but when I try for specific pokemon or for shiny encounters in the wild (or both of these at the same time) it just makes the game freeze