A bit of advice, make sure you manually restart after the update; for me there were two updates, first a 20 meg one, followed by a 9 meg one. I’ve played previously when an update didn’t complete with weird text results.
Two new clothing additions, not sure of what they are called yet Not Available yet, It’s Johan and Johnouchi’s Cloth, Maybe in the future NPC will award you their cloth.
The logo on the blue and white t-shirt is some short of reference to the “Konami Code” or like a lot of people knows it as the “Contra Code”. The Konami code is Up, Up, Down, Down, Left, Right, Left, Right, B, A and Start. (Thanks to Kaido for pointing this out).
There is also a New Avatar Pieces (Scapegoat’s Avatar), which seems to be referred to in the code as ‘Afro Lvl 4’ (Personally I think it looks like a sheep creature, brain hugger) Look like’s all of this are Hat/Avatar’s Part on character head.
Something interesting, This Avatar’s Part look like It’s Rare Hunter avatar’s or maybe It’s NDS Qualifier’s Robe for NDS World Championship 2008 Qualifiers or new npc.
New chibi (the pictures used when you are running around) have been added to support the above clothes, as well as extra ones – possibly
Upcoming NPCS From YU-GI-OH and YU-GI-OH GX Series
Kaiser’s Ryo, Edo Phoenix, Jim Crocodile Cook, Marik Ishtar, Bakura Ryo, Kujaku Mai (I really hate dub name)
There doesn’t seem to be any new cards added, although there is a new reptile/dinosaur recipe – possibly for a tackleberry npc, or a structure deck. I’ll list the cards in additional comments.
Now It’s confirm on Konami Style New Duel Pass is Rainbow Explosion