recently ive been playing cortex command build 26 then i realised some enemies dropped "enemy radio" or "portable gaming computer"in the shape of a gameboy... so
what are the purpose or uses for these "things"?

Those are for selling, they're worth a lot of gold.
Do you have Unitec?

You're using UniTec and selected one of the UniTec skirmishes.

Edit: And, yeah, what TorrentHKU said. Grab 'em and sell 'em. Basically just an alternative to mining.