http://armorgames.com/play/6726/castle-guardian
Decided to click on a random game and hack it.
There may be a Newgrounds thread for it, but it doesn't have these hawt babes:

Everything you want to know is a root variable. The only one actually worth mentioning is
_level0/:money
Use the 3rd result, the end value is 4b*8.

Get coins without touching them (AS2 is :/):
9d 02 00 1a 00 17 96 02 00 08 67 1c 96 02 00 08 32 1c 4e 96 02 00 08 18 4e 96 01 00 03 49 12 12 9d 02 00 88 02 =>
99 02 00 1a 00 17 96 02 00 08 67 1c 96 02 00 08 32 1c 4e 96 02 00 08 18 4e 96 01 00 03 49 12 12 9d 02 00 88 02

You no die:
12 9d 02 00 10 00 96 0b 00 06 00 00 00 00 00 00 00 00 08 45 3d =>
12 99 02 00 10 00 96 0b 00 06 00 00 00 00 00 00 00 00 08 45 3d

You can, of course, find more root variables using this method:
1)In-game, do a text scan for _level0/:
2)Next scan for _level0/:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
or something to that extent.
3)Click undo scan and look through the results.