Super Smash Bros. with in-game and in-system currency.
According to Miiverse posts by Super Smash Bros. Director Masahiro Sakurai, the game's trophy shop offers players the chance to buy the collectible items using in-game gold or 3DS Play Coins. "If you're having a hard time getting certain trophies, why not just buy them," Sakurai wrote, noting that trophies "sometimes go on sale, too." 3DS Play Coins are earned while players travel with their systems in sleep mode, with the 3DS acting as a pedometer of sorts. While Super Smash Bros. Brawl had a whopping 544 trophies, Sakurai also teased that the upcoming "3DS version alone may have more than Brawl." Super Smash Bros. will reach the 3DS on October 3, followed by the Wii U version (which we rather enjoyed at E3) this winter.