Never officially released. I touched them all briefly hoping to find a hidden gem the vast majority are literally just worldwide edition with new paintjobs / bugs. It's how i found the Duel Academy game which is pretty excellent as there is 3 in game years of playable content in that thing.Depends what you want this cover all of the og series arcs that were made on GBA. But as for reason to play that is up to you though, also keep in mind at least 6 of them were never released in English as well.
For my recommendations it is by far the best yugioh game I've touched that is still just the card game in digital form.
Which means my Recommendations are as follows. Worldwide Edition (OG Era). Duel Academy (Gx Era). World Championship 2011:Over The Nexus (5D's) blessed with luck we got all the ones worth looking at.