If you need a health cheat, the default health value is 4 bytes (10), minus however many hits you've taken.
tbh this game is bad lol. Too many bugs and oversights to list:
Enemies can pop you through walls, crouch+forward kick animation is off, bullets don't fire from the right position while crouched, not enough room to maneuver often, managing your ammo is real important but it's annoying to drop down to a shield girl and waste your shots / get juggled to death.
Also uses up way too much CPU power.