Invincibility - Open "standard.feel" in a text editor such a notepad.
This file can be found in "\archangel\bin". Change "invulnerable 0" to
"invulnerable 1". Save the file and now when you play the game you should
be invincible.
You should however always make a backup of files you edit as these files
are essential for your game to work. You make these changes at your own
risk.