Xyanide for PSP is an enhanced old-school shooter game injected with new technology. The player takes the role of Drake, an executioner who has to blast his way through a myriad of tunnels populated with the worst enemies ever imaginable at incredible velocities in order to escort the dreadful witch Aguira to the Maelstrom.

Mardar, a lonely isolated planet in the utmost borders of the galaxy, has been under the influence of a black hole since the beginning of time. The inhabitants of Mardar consider the black hole as a divine tool, brought to them to swiftly punish those who do not obey the holy laws. These laws are firmly exerted by the feared

Aguira the witch has been sentenced to death by the Judges of Mardar. The charges: devastation of worlds and civilizations. The sentence: disintegration by dumping into the Maelstrom (a.k.a. the black hole). Drake is the chosen guard, who will be escorting the execution craft and enforce the execution. But upon arrival, an asteroid hits the execution craft. The asteroid consists of Xyanide, a substance that has one obvious characteristic. It instantly materializes thoughts. Drake sees the instant creation of hostile worlds between the execution craft and his fighter and realizes what happens. Aguira is trying to use Xyanide to escape and Drake knows he has only one option: battle his way through the goriest worlds of horror and destruction and encountering mass enemy attack waves.