It also adds a variety of new features including new special attacks, branching gameplay paths and multiple endings.

The Deutschland Moldavia (DM) corporation rules most of the world and its resources, conducting mysterious genetic experiments.

Four people affected by DM's research, Flynn, Echo, Al and Prokop, seek revenge on the corporation for its wrongdoings.

Douglas Bild, known in Rival Turf as Oozie Nelson and in Brawl Brothers as Slash, makes a short cameo appearance at the start of the game's first level.

Many of the character and place names in the North American version are derived from esoteric real-world, literary, and cultural sources.

This includes the villain Iago (from Shakespeare) and the weakest and most prolific enemy in the early stages of the game known as Fnord (from Robert Anton Wilson's books, The Illuminatus!

The Pirate Dock known as "Agrajag Cavern" is named for a minor character in the radio comedy series The Hitchhiker's Guide to the Galaxy.