Don't worry... I ain't after the reward. Just love challenges like these, and besides this problem may crop up again for someone who is looking for a solution or workaround to this.
Here's the best quick and dirty solution I could find:
1. System->On Start of layout, Mouse->Set Cursor to None
2. System->Every tick, Sprite->Set position to (Mouse.X, Mouse.Y)
This way, at least you get a permanent custom sword graphic. If you do the mouse click sequence, the mouse arrow cursor just appears atop your graphic, that is until you move your mouse. Not that bad...
And like what others are saying, just release your game.