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UPDATED: Our good friend Ravi Hiranand has mentioned in his recent Super Mario Sunshine impressions that a Super Mario Sunshine save did NOT unlock any new trophies in Super Smash Bros. Melee. Nintendo's page is very difficult to translate, but it seems that there may either be a mail-in offer, or a Toys 'R' Us visit needed to get the trophy.

Still, this information is only accurate for the JAPANESE market. It's still possible, even likely, that the US version will unlock through standard save games. We'll try to dig up some information and continue updating this story as new information comes to light.

Super Smash Bros. Melee proved with Pikmin that you don't need an internet connection to update a game. With a Pikmin save on the same memory card, you'll recieve a new trophy the next time you play Super Smash Bros. Melee.

Sure enough, Nintendo has continued to add value to SSBM by adding a Mario on Yoshi and a Samus (helmetless!) trophy to Super Smash Bros.

Whether these trophies were all ready in the game and triggered by game saves, or whether the trophy model is in the save is still unknown (and Nintendo ain't telling). All we know is that they are activated only with these saves on the card.

Thanks to reader ali_56 for the tip!