From Sonic Retro

The gold one is called E-2000R, you say?

Is there a source for this that I might also make use of? Frozen Nitrogen 21:26, 22 February 2010 (UTC)

The strategy guide, thrice in the Chaotix walkthrough for the Keys locations. It's usally used as a legit source, right? 0r4ng3
I thought it must be that you have the strategy guide. I don't :(
But yes, that's a legit source indeed. Good show. Frozen Nitrogen 22:13, 22 February 2010 (UTC)