Pfft...
All these reviews of people whining about the difficulty of this game has lead me to believe I have quicker reflexes than 78% of humanity. Seriously guys, all you need is timing. Stay low on the ground, actually intellegent FBI agents are rare, and only 30% of the time will you need to jump to avoid a low shot.
And sure the final boss gets some cheap shots on you (I.E. shooting you when you're still getting up from his punch), but if you're lucky and time it right, you won't die. Once.
Start practicing or go back to the simple and protective sanctuary of your sesame street games. Pansies.