SNK Playmore has announced that it's bringing Metal Slug XX ("double X") to the PSP. The title is set to release on December 23 in Japan, with an asking price of ¥5,040 ($56). A remixed version of Metal Slug 7, the game includes ad-hoc cooperative play, over 70 mini-games and, as is tradition, lots of bullets. SNK was kind enough to release a trailer for the game, so you won't have to imagine how chaotic the game will undoubtedly be.
If you just can't handle all that action, we have some nice, quiet screenshots too.