The Cake Escape map is a map with multiple rooms which you want to escape to get to the next one until you get to the exit. In each room there is a cake in positioned in the floor of the room. To be able to safely get to the next room you must lose enough health without dying to eat the cake and then jump down to the next room through the hole which was created when you ate the cake.
If you didn’t understand how it worked in exact detail just give it a try and you will probably get the idea. It’s a unique and fun puzzle escape map.