Simpsons Doom Walkthrough Part 1 / The Ultimate Doom

This is a walkthrough I did because I have yet to see much on the Simpsons Doom. This is Knee-Deep in the dead Part 1 the Hanger. I figured if youre going to start somewhere, why not the very beginning. Im going to try and get every secret in the game and explain how to do it so youll know. Hope this helps if you need it! :-)