Just scored this from a coworker for 50$ :D thoughts?

Not the same experience; emulators usually have slightly different coding (plus the controls are ass compared to the original gameboy)

You mean the game genies?

Yeah what's that for?

You know how emulators have rom hacks?
It was kinda-sorta-but-not that, but for physical cartridges. You would put the game in it, and then put it into the GB.

Wow, I thought hacking was a internet-age thing.