Urban rivals is the only one I have found semi entertaining
No. I was looking 4 them but I found none
duelingnetwork
No, only soundtracks.
DSI's and DS (Lite)'s use the same games, so if there's a Yu-Gi-Oh game for the DS, then you can play it on the DSI.
No there are no Yu-Gi-Oh! games that are good without download so sorry.
yes there is Yu-Gi-Oh game in the playstation network store it is called Yu-Gi-Oh decade duels plus.
Currently, no. Konami has yet to release ANY Yu-Gi-Oh! games on the Sony PlayStation 3.
Dueling network
yes,yugioh 5Ds Wheelie breakers
tony hawks under groud
LackeyCCG and Byond (Duel Monsters Genesis).
I don't think there are any.