Bills Must Be Paid is an engaging incremental game where players pay bills by smashing various piggy banks. Each smash consumes stamina, and players must strategize to avoid bankruptcy. Successfully paying bills unlocks perks and earns legacy points for upgrades. Players can discover different piggy types, each hiding random loot, while a skill tree allows for enhancements like improved grip strength and unique abilities. With a variety of hammers to choose from, players can customize their approach to maximize their efficiency and collect rare coins throughout their gameplay experience.