When you are fighting the Dear Creature in the dining room of the mansion, hide in the spot of the wall that the dear broke through while you shoot him and he won't be able to touch you!

Go to the organ in Scotland the Brave. Press X and it will play certain tunes....
The Baseball Music
Horror
Anaconda(!)
And another one too. You can hear them over and over again if you wish.

When the big goliath appears that you have to fight in the "something to Crow about" level, just run into the little room it came from and hide in the corner to the right of the entrance. For some reason it can't hit you here, and every tim it fires its guns it hurts itself. You can just sit back and let it kill it self.

In the 1994 laboratory, after the mansion, you will reach an area with a scientist and a zombie trapped in separate cells. If you activated the computers next to either one, and wiggle the joystick, a program will appear on the computer. Select the white boxes for things to be included in the experiment, and chose degree of variation. Then hit the "Run program" button, and watch as the people in the cages undergo changes!

There are two tiles in the Virtual Tile set (and only the virtual tileset) that don't have collision. The first one is tile Number 35: Trench Ramp, this tile will allow a vehicle to be driven through the back side of the ramp (but only while your in a vehicle). The second one is tile number 37: Trench Corner Ramp and number 38 (same tile but mirrored). This one will allow you to walk through the backside of the ramp (but unlike the other one you can't drive through it just walk). You can use this to make hidden pasageways for vehicles or secret hiding spaces for powerups and other items.