RadioActive Gravy

The Radioactive Gravy helps food purchases generate more happiness!!!
Radioactive Gravy is the first sauce that you will unlock in the game and as the description says, with each purchase of a customer, the rate of happiness increase. If you upgrade the Radioactive Gravy Machine to the maximum level(Level 5), the appearance of the sauce looks like a large white-green carton. "You can't put gravy on anything and expect it to instantly look better, except maybe this one..."