One part Metroid, one part Limbo, one part 60 frames per second and everything dark and mysterious… that’s what makes Insanely Twisted Shadow Planet (henceforth ITSP), fourth in the lineup for this year’s Summer of Arcade promotion. Until Comic Con it was assumed that ITSP was to be a single-player-only experience, one that earned “Best of Show” at E3 from us here at XBLAFans for its bold visuals, inquisitive gameplay and multiple approaches to progressing through levels. But the single-player-only assumption was just that: an assumption. ITSP will feature a four-player cooperative (couch, online and any combination of the two) game type called Lantern Run.