I am not a super huge fan of Pokemon--I'm kinda afraid of getting addicted and having to get them all!--but it looks like you are playing a hacked/homebrew Pokemon ROM.
Both Glazed and Resolute are hacked fan-made games.
Test out the EZ-IV with some real, classic games to make sure it is working ok.
I've used both, it seems to be the nor thug because I was using it and it would freeze every second, then I took it off and put it back on and it worked for like 30 minutes then started doing it avajn
They were probably developed on a PC and tested using emulators. It may not be thoroughly tested with EZ Flash IV with a real GBA (SP).
Did you see there are two versions v1.16 and v1.17 of Resolute over at pokemonresolute.com? I don't know, try both and see how well they work. Did you patch your own Emerald rom or just download the premade one?
It looks like a pretty neat game, maybe I'll test it out myself.