What Tasty Blue is
Tasty Blue is an underwater side-scrolling eat 'em up game. You start as a small goldfish with an insatiable appetite. After being overfed by your owner, you escape into the ocean and eat everything you encounter. The more you eat, the bigger you get, and once you're bigger than something, it's food instead of a threat.
The story runs through three playable characters. The dolphin is an overworked aquarium star, forced to jump through flaming hoops for food, and it escapes captivity by eating its way through the aquarium and taking revenge on its trainer. The shark is the final playable character, an artificial fish created by scientists to save Earth's oceans, using self-replicating nano technology to consume everything in its path and convert their matter into its own. There's no telling how big it will get.
There are over 50 levels in the main story mode, plus 15 more challenging bonus levels that open up after the main game has been completed. The three main environments to explore are temperate, tropical, and arctic.
Playing it together
Two players can play side by side on the same computer. You choose between split screen, horizontal or vertical, or shared screen. Shared screen gives you more space to see but constrains where the two of you can move, since you stay together on screen. Remote Play Together is also available, so someone can join over a connection rather than sitting at the same machine.
Keyboard and mouse controls work in all modes. On Windows, most controllers work for the single player game, but for 2-player co-op both controllers need to be Xbox 360 or Xbox One controllers. On Mac, PS3 and PS4 controllers are supported.
Before you start
Difficulty is adjustable across a wide range. On the easiest difficulty enemies do virtually no damage. On the most challenging difficulty enemies will eat you and cause instant level failure, so pick something that matches how tense you want the session to be.
There's a Carnage Mode that adjusts the amount of blood that comes from your prey, and it's off by default. Worth knowing if anyone in the group is sensitive to that, and worth switching on if the group wants the messier end of things.