Hint: Beating The Princess
Beating the boss in Mansion of Madness involves simply side-stepping in one direction while aiming up and turning. The closer Cortez is to the fountain, the greater the chance it is to avoid being swiped. When the boss is about to die, step back and fire the last shots to avoid the final death blow.

Beating the boss in What Lies Beneath involves simply using the Ghost Gun and knowing where to stand. Locate a rock that shields Cortez's legs while allowing him to fire back unimpeded. The fire attack from the boss has to drop to the floor before moving forward; this simple rock protects the player from most of the fire breath damage. A melee attack will destroy the bats and allow the Ghost Gun to damage the tank.

Hint: Free The Jungle Queen
The optional task of freeing Captain Ash's ass-istant is easier than you think. Head into the prison cell on the other side and make a line of vertical holes on the metal drum from top to bottom. This creates the largest pool of petrol possible. Ignite the mess by shooting the lantern hanging from the ceiling and the ensuing explosion will give you a eyeful of T&A.

Hint: Beating The Tank
Head for any ramp and stay out of the tank's sight. Use the telekinetic glove to grab the respawning ammunition to pounce the tank with rockets. Cortez wins, the tank does not.