Choose-a-mech

The gang asked me if I could code their idea of a game where you can select between and equip different mechs. Thing is they asked me to help some 10 hours before the submission deadline, and I cant do an all-nighter for I have to work tomorrow... So... I delivered something in 5 hours... Enter the store, select a mech by moving arounds (WSAD or arrows), then purchase it. Sadly theyre mass produced, any customization was lost in the short time.