Keep up the Koop is a simple, yet engaging experience for two players.
Living in a symbiotic relationship, both players share the same healthpool: if one of them dies, he takes the other with him. This leads to a Game in which cooperation is not only a beneficial strategy but a mandatory tool to see your struggles rewarded. While one of the Players is locked in a room with countless foes that lust for his blood, the other has to solve a riddle and get the doors open so that both of them can reach the exit.
However, there are tools at both players disposal to make their lives easier (or harder). Additionally to the firearm that the Actionplayer wields, traps are scattered around both areas that can be activated. But beware: These traps not only help repel enemy threats, they can also end the lives of our two heroes if they are not careful.