FearLess Cheat Engine

I'm trying to find Infinite Health for Shipwreckers / Overboard.

The game uses a fixed address to hold the health value for each level (that is, the fixed address changes for each level).

For level one, the health value is stored at The instruction that decreases this value is but if I NOP it the game crashes after a few seconds.

Here's the full info for that instruction:



I'm looking for suggestions as to how I can progress this.

EDIT: no longer needed as it turns out there's a hidden invincibility mode (see TCRF) that can be activated with a hex edit.