Yesterday I bought a copy of Nintendo Power with an exclusive story on the upcoming Sonic Colors. It stated that these weird aliens things are called Wisps and they function as power ups. The yellow wisp gives Sonic the power to drill into the ground. I guess his old rival jumped on the drill a little early
Watch out, Mario! D:
Knuckles beat them both to the punch.
Awesome! XD Sonics drill is better though, since its controllable xD but neat idea. That would be awesome!
I was thinking the same thing.