I'll be in Budapest for three weeks on work, and hoping to have some downtime on the weekends. Are there any local flea markets or boot sale spots worth checking out for video games? Any local video game shops that deal in 8/16/32 bit systems in the area of interest? I'm not expecting to run across a Super Potato type place, but always open to checking out local spots to see what's there.

Thanks in advance for any suggestions!