Sonic goes searching for Treasure with Tails in Sonic Rush Adventure. From what canon style the first Sonic DS game had this appears to turn it into some sort of spinoff, with classic 2D stages mixed with adventure scenes to sail oceans and gather treasure. And battle pirates. Yep, Sonic finally faces pirates. We might see ninjas next. Time will tell if this game will sink or float though...
#2: Sexy TSS Coder gets a good grillin', mehearties.