Tenchu 2: Birth of the Stealth Assassins Tips

Cancel the effect of poison
If you get poisoned and you don't have an antidote the venom will kill you after sometime. But there is a way to avoid it. You'll get damaged only if running so try crouching. You still are poisoned, but won't suffer the effects. To advance try rolling, constant moving while holding R1 or run a bit then crouch. This method will make the level longer to complete, but you won't die. This trick works 100% in the NTSC-US version of the game.