TimeShift

TimeShift cheat codes: 
Play as Dr. Aiden Krone:
Enter "RXYMCPENCJ" as a code to unlock the Dr. Aiden Krone skin
in Multiplayer mode.

Defeating the final Boss:
In the battle with Dr. Krone's gigantic Sentinel, when you destroy one
of his guns with the Pulse Gun, Krone will send artillery raining on
your roof. In order to escape this barrage, slow time, and go into the
far right corner. Face the wall and look up at Krone's Sentinel. Jump up
on the platform. Keep running to the right into the corner. You will
take no damage while in that corner. This works for all three barrages.