OK I've beat the game twice now, once on Acolyte and again on Warrior. I breezed through all seventeen levels on the Warrior difficulty in about six hours total playing time. Thought I was good until I started the game on the Mentor difficulty last night and I'm stuck getting my ass kicked on level three. Haven't even made it to the boss yet. All the enemy ninjas now have machine guns or explosives and they're lighting me up! Wait till I get my dual katanas or flail back and they're history, LOL.