SouthPeak has told Eurogamer that the PS3 version of Monster Madness has been pushed back to September.
MM: Grave Danger was expected as early as April, but has hit numerous zombie-shaped bumps along the road to release.
Monster Madness came out last summer on Xbox 360 to fairly muted applause, with online co-op noticeably absent.
But the top-down shooter is being rethought for the Sony audience and includes the ability to play with your friends online as well as mess around in 25 mini-games.
Pop over to our recent hands-on with the comic-book nod to Zombies Ate My Neighbours to see what has changed.