The Killzone series is an effective showcase for Sony. The games show off the power of the consoles on which they release, and the upcoming Killzone: Mercenary is no exception.

In the latest developer diary for Killzone: Mercenary, the team at Guerilla Games talks about how they didn't have to change much to bring its graphically impressive series to the Vita. In their eyes, Mercenary is a full Killzone game, not just a good- enough-for Vita release.

Killzone: Mercenary releases exclusively on PlayStation Vita on September 10. For more on the game, check out this gameplay developer diary.