Tasty Blue is an engaging underwater side-scrolling eat 'em up game for Mac that invites players to experience the ocean through the eyes of various aquatic creatures. Starting as a small goldfish, players navigate through 50 main story levels and 15 bonus levels, consuming everything in their path to grow larger and more powerful. The game features three diverse environments: temperate, tropical, and arctic, each offering unique challenges and aesthetics. Players can choose from a range of difficulty levels, catering to both casual gamers and those seeking a more intense experience.

In Tasty Blue, players also take on the roles of a dolphin and a shark, each with their own backstory and gameplay mechanics. The dolphin escapes captivity while seeking revenge on its trainer, while the shark, designed with advanced technology, consumes everything to protect the oceans. The game supports two-player mode, allowing friends to compete side by side with customizable screen options, enhancing the fun and interaction.