You play as Chao the janitor, who, along with his sidekick, the Italian cappuccino machine Mr. Ernesto, try to save the world from the terrible Moldies. Stop these dastardly things by guessing passwords to the installation's weapon systems! Bigger words equal bigger weapons that do more damage, or play many smaller words quickly to keep the Moldies from the barrier. Mr. Ernesto is not just a pretty cappuccino machine, so expect upgrades, advice, and of course plenty of good Italian coffee.