I never gave them a thought either, but I was trying everything I could get my hands on for achievements, hoping I'd come across a hidden gem. Cabela's African Safari is pretty good. It's just a third person shooter. It has good controls and the environments are really nice. They are small areas though. Nothing you could roam around in for too long, but you're there to hunt a specific animal and you get to it pretty quickly. It's also not a long game. The developers are all Romanian and they do most of the Cabela's games. They did a good job on African Safari.
I never heard that about the phone charger running a 2600. I think the heavy sixer is basically the same as the others, just with higher quality parts. So it should work.