Somebody better find and dump this, and possibly even an English version if it exists! Despite the obviously misspelled name, this could be good! A Sonic game for the Game Boy COLOR (not Advance)...that might be FAR better than all of the other takes on the series (especially 6 for the original Game Boy), and it even features Tails! If there's an English version, I wonder if there's an intro featuring some really detailed text with weird grammar like in many of their other games such as DK5: TJOOTAS. I'm also wondering, is this a port of Advance 2 or an original game, and how accurate is this to the rest of the series? Either one, I'd be interested in checking it out.
By the way, that title screen is kind of weird...