Thank goodness then that the Killzone baddies will be appearing in the upcoming PSP sports title Hot Shots/Everybody's Tennis: Get A Grip. (Obviously the name depends on the region you're reading this from). We love tennis games, and we love PSP titles with a pick-up and play mentality, so we're stoked about Everybody's Tennis. The inclusion of the Helghast just makes the deal that much sweeter.
Hit the link for more on the game via the Playstation Blog.