When angling meshes like this, sometimes the face won't show up in game. That's when triangles come in handy. The first method would be to Delete one surface at a time and fixing it. Delete one face by clicking on the face with the Delete button on (found in the Face division). Now select the Create button and look at the free-moving command window. The first three option have to deal with the way that the face will be facing, so make sure that front is selected. The next three options have to deal with how many points you will be able to select. Instead of having to select the triangle every time you want to create one, I found a little shortcut. Click the three points that you want and right-click to make it a triangle. That way, you can keep it selected on face without a worry. Now select the bottom three corners and right-click (if your using the shortcut). Next select the top three corners and right-click. Your object should like like below:
An easier way of doing this would be to select Wire from the L&W division. Make sure that you have the second option selected from the free-moving command window. Click and drag from point A to point B over the face. Note that this will only work when dragged over a face. Use this technique for the rest of the bent faces. Hit F1 or F3 for a side angle of the object. (F1 for a perspective from the X axis, F2 for Y axis, and F3 for Z axis. Note that you have to check your preferences). Select the Knife from the L&W division and drag it over the tip. The knife will only work if you drag it over the whole face; you can't start in the middle (point A is correct point B is not). To make a straight line, hold down shift when using the knife option.
After using the knife, select newly created pyramid and move it up 10 Y. Move the point of the pyramid another 10 Y. Select the pyramid that was created with the knife and click on the Rotate button found in the Edit division. You can either select the X from the free-moving command window, or click on the red ball and rotate it 25*. The object should now look like this:
That's it of the tutorial. The other functions have little value or I haven't figured them out yet. If this tutorial helped you in anyway, I would greatly appreciate it if you emailed me compliments.

The knife is an easy way of splitting faces.

The Wire tool is very useful when it comes to "illegal faces"
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