How do you do the two hundred percent health cheat and when do you do it on black ops?

In Call of Duty: Black Ops, you can activate the two hundred percent health cheat by entering the code during gameplay. Typically, this is done in the single-player campaign or while playing in a custom game mode. The cheat is activated by inputting the specific button combination for your gaming platform, usually found in cheat lists online. Remember that using cheats may disable achievements and trophies for that session.