Your favourite song can be quite scary when it's launching legions of spaceships to blow you apart. Fear not, Beat Hazard players! Come next month you'll be able to get a friend to help you beat back the invading hordes from Lou Reed's 'Metal Machine Music,' when multiplayer finally arrives as downloadable content.

Launching via Steam on June 27 for $5, the 'Ultra' DLC will add co-op and competitive online multiplayer modes to the arena shooter. Beat Hazard, don't you know, generates its levels based upon music you feed it--Audiosurf with guns. Beyond mere multiplayer, Ultra's a fairly hefty overhaul complete with new enemies, bosses, power-ups, and modes, plus a new perk and upgrade system.

A PlayStation 3 edition of Beat Hazard are slated to launch some time this year. One would imagine that these will come with Ultra's features built in, considering how much it's changing. Ultra won't make it to the Xbox 360 version, as it was released via Xbox Live Indie Games--which doesn't support DLC. However, developer Cold Beam Games is running a petition to raise publisher interest in an Xbox Live Arcade release of Ultra.