You can add these to the compatibility list, I used SM64DS(EUR) as donor game in all games, no flashcard used, latest TWLoader (0.3.1), everything except ARM9_SCFG_EXT is on & maxed out:
Another Code (EUR): Works flawlessly as far as I can see, just some slight lags of the music when loading new texts/areas.
The Sims 2 (EUR): Intro lags and loading times of the main menu are long. In general long loading times lead to delays after almost any action made. Saving works.
Dragon Ball Origins 2 (EUR): Won't load, stays on white screen.
Final Fantasy III (EUR): Says save memory wasn't accessible, trying several games of different save size(Valkyrie Profile, Pokemon Diamond, Rhythm Paradise, The Sims 2) in slot 1 didn't solve it.
Elite Beat Agents (EUR): White screen after intro.
Final Fantasy Tactics A2 (EUR): Won't load, stays on white screen.
Feel The Magic (EUR/US?): In general longer loading times, but still ok in terms of playability, saving works.
Kirby Power Paintbush (EUR): Won't load, stays on white screen.
Mario & Luigi Partners in Time (EUR): Intro loads very slowly, in general long loading times, saving works.
Mario & Luigi Bowser's Inside Story (EUR): Won't load, stays on white screen.
Last Windows Legend of Cape West (EUR): Says save memory wasn't accessible, trying Pokemon Diamond (EUR) leads to menu. Maybe it works after the intro, loading times would be far too long, wouldn't be worth it.
Mario Kart DS (EUR): Still works of course.
Mario Party DS (EUR): Won't load, stays on white screen.
Mario Hoops 3-on-3 (EUR): Says save memory wasn't accessible, trying several games of different save size(Pokemon Diamond, Valkyrie Profile, The Sims 2, Rhythm Paradise) in slot 1 didn't solve it.
Megaman Starforce 2 (EUR): Won't load, stays on white screen.
The Legend of Zelda Phantom Hourglass (EUR): Won't load, stays on white screen.
Urbz Sims in the City (EUR): Long initial loading times. Crackling sound due to loading. Delay after every action, including character creation. Saving works. Not playable yet due to those delays, still a great game not only because of Ian Stocker's great music.
Valkyrie Profile Covenant of the Plume (EUR):Won't load, stays on white screen.