After you beat the game, while the credits start to scroll, you can walk into the bathroom and change into civilian clothing. You can use the duster and everything too. Anytime you want you can walk back in and change back into BoogerMan. You can even fly around. Just remember that the door on the right is the bathroom. The one on the left just makes you exit.
Anytime during the game, press:
A + B + C and Start on controller 2.
Use controller one and the D=pad to make Boogerman fly around the screen to collect icons and otherwise.
Just do the same input to make Boogerman move again.
To get a free carrot, when in-game press Up, Down, Left, Right, B, Up, Down.
Level 1: Scab Creature, Abdominal Sewer Man, Pus Creature, Miner Goblin
Boss 1: Ghost, Nose Goblin, Ghost, Pus Creature
Level 2: Pus Creature, Scab Creature, Ghost, Boogerman
Boss 2: Troll, Miner Goblin, Nose Goblin, Ghost
Level 3: Scab Creature, Ghost, Abdominal Sewer Man, Boogerman
Boss 3: Boogerman, Pus Creature, Miner Goblin, Scab Creature
Level 4A: Nose Goblin, Scab Creature, Ghost, Troll
Level 4B: Nose Goblin, Pus Creature, Ogre, Scab Creature
Boss 4: Ghost, Scab Creature, Troll, Miner Goblin
Level 5: Pus Creature, Boogerman, Ghost, Pus Creature
Final Boss: Pus Creature, Abdominal Sewer Man, Boogerman, Miner Goblin
Enter the following password go to the level shown. Key:0 - Boogerman1 - Green Spearman2 - Fat Yellow Monster3 - Orange Monster4 - Sad Green Horned Monster5 - Yellow Spotted Pink Monster6 - Miner7 - White Ghost8 - Red Monster9 - White Bigfoot Monster