CorrosiveTruths put this on YouTube with the following explanation of how he did it:
I used ARTMoney. I walked back and forth trying to add add, then subtract unknown values to get at the character position. The locations for sh4pc are: X pos: 010A0FE2 and Y pos: 010A0FEA, these are 2-byte integers. Give ’em big changes to knock yourself out of the world.