Game url:
http://www.webgames.cz/defend-your-nuts-2/4551-0/

Hacks:
[A]Coins , [S]Nuts , [D]Toggle Wall Health (If you have that) , [F]Ammo +25 (In All Weapons , [G]Invincible Rogue/Warrior , [H]Rapid Fire (When you hold the left mouse button and still shoot)