Castle Infinity

Jump through floors:
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Hold [Ctrl] and jump to pass through floors that have rooms underneath them.

There is a cheat for Castle Infinity. I don't know if it's a bug or not but 
if you hold control and jump, if the floor isn't directly over null space, 
(i.e. Going through the floor there will take you to beyond the beyond.) 
then you'll go right through the floor. An exception would be in your room 
looking at your points. If you do the trick here, you'll go down into the 
little tab and be able to jump off and into beyond the beyond.