This is apparently some kind of mini-carton of "Mega Milk".
But what IS Mega Milk? The magazine says you can get it at your local Milky, but only if you know what that is too!
Supposedly this stuff is quite bad, as the magazine hated it. Has anyone ever been brave enough to drink/eat whatever substance is inside this carton? Write in! Supposedly, it was just regular milk! But then why all the fuss? Why is the carton blurry? The magazine couldn't take a good enough photo of it. You can't even tell where Sonic might be on this little thing. Very curious indeed.