Cheat Mode
Try to go up the stairwell you came out of in the first castle, where the game started. The game will not allow you to ascend. Press [F11], then go all the way to the left of the screen. A screen will appear with cheat mode options. Note: You may have to move a spot or two in the corner to find the correct location.
No clipping
Press [F11] during game play to walk through walls, walk on water, walk over lava, and walk past other obstacles.
Quick level ups and extra money
As soon as you exit the first castle (the one you started in), go straight down and you will see a peak of land. Enter into the water where the longest part of the peak ends. You will fight Death (which is an easy battle). Note: To restock, go back into the water and you will not have to fight Death again.
When you leave the first castle where you start the game, before moving west to the cave, go south to where the water is located. At the rightmost south corner, you can enter the water and fight a small drawing of something that cannot seem to hurt you. One hit will kill it. You will get an amazing amount of experience points. When you fight in future battles, you earn a level for each fight. This stops working after awhile.
The Sword of the Gods
After fighting Salander for the first time you will come out of a hut. Go southeast until you come to some trees. Then, go northeast to a peak of land ending at the water. A voice will tell you to go to the royal hut. Go eight west, six north, four east, eleven south, four west, five north, and six west. Do exactly what the voice tells you to do.
Cheat Mode...