Couldn't figure out how to buy anything. I think the city screen would be improved by displaying controls.
Noted, I will add message with controls on start and on first time you enter city.
EDIT: Made some improvements, is it clear now?
Yep buying/selling makes sense now. The last change I would recommend is to leave 'press Z to exit' on screen. Especially since the escape key drops you back to the pico shell.
Thank you for feedback! Z to exit trade screen added!
