For real! The "tilde" key is the one on the left side of your keyboard, below esc and to the left of the 1 key. It`s got that squiggly line that looks like this: ~. Okay, during normal gameplay if you get stuck in a wall, fall through the world, or get trapped behind the bars in Arena, etc., simply press the tilde key once and type the lower-case letters "tcl", no quotation marks. That`s t as in t-bone, c as in car and l as in lamp. Then, simply press the ENTER key once. The line:"COLLISION OFF" should appear. Press the tilde key again and you`re in "Ghost mode" as I call it. You can pass through anything and if you look upwards, you can fly, anywhere! I would suggest saving before this, but if you`re that stuck you`ll be loading a save file anyway. This way you don`t lose any progress. When you`re out of the jam, simply reverse the process, (making sure you`re a few meters above the floor/ground and not in the middle of a tree, lol). To exit ghost mode, hit tilde, type tcl, hit the ENTER key. It should then say COLLISION ON. Hit the tilde key once more and you`re solid again. Congratulations, you`ve just used the mysterious "console"! There are many more codes like level-skip, etc. but they can bug your game so bad you can`t finish it. This is simple, easy, fun, (flying!) and a lifesaver. ENJOY! WARNING: DIVING DOWN THROUGH THE WORLD WILL GET YOU LOST IN BLACKNESS BIGTIME! Just saying...