This discussion may contain spoilers!
Here's the big old list of stuff you need in Dangeresque 3; nice, complete, and in one place:
edit: Okay, telltale released the awesomeness guide, so this thread is pretty much obsolete now.
Dangeresque 3 Merchandise: All available in extended play.
1: Perducci-O's Cereal - Pour potion on the stick (in extended play, give second soda to pom-pom again for second potion)
2: Dangeresque Doll - Throw the rock at the bottles at The Club
3: Killingyouguy Lunchbox - Cut another piece off of the stick, and dip into the river in Venice.
4: Renaldo Fun Sheets - Shoot at the "city limits" sign nearest to Brainblow City Prison (Bubs')
Space Circus Manual Pages: All available in extended play, except #1 for Wii. (see below)
1: Click on the center of the puzzle (the place where you put the trinket) in the catacombs. If you play on a Wii, YOU MUST DO THIS IN STANDARD PLAY.
2: One is on the tail of the ruby rocket, just click it (shows up as "???")
3: Cut the plants in Strongborneo with the Big Knife
4: Use the picture of Dangeresque and Sultry Buttons on the computer in the Secret Lab
Personalized Bullets - All found with metal detector: All available in extended play.
1: Sultry's - Marzipan's house, near her flowers
2: Diamonicle's - Strongborneo, near the wet area
3: Killingyouguy's - By the cool car
4: Perducci's - Venice, near Strong Sad
Costumes: All available in extended play.
1: Underwear: Shoot the tube next to Craig at the Space Station
2: French Mustache:]Click on Strong Sad's Mustache in Extended Play
3: Monocle: Click on the left most grass at the jail
4: Boots: Click on the smallest box in the catacombs after you knock out the monster
5: Fedora: Click on the hat at the old warehouse
6: Top Hat: Hit the whale with the rock, then shoot him and click on the box near the Photobooth
7: Suit Jacket: First, you must click on the chair in the office, then enter the dream sequence. Then take the phone off the hook, and return to the normal office (through door or with map). Click on the rightmost Painting (not the dragon) in the normal office
Characters Nunchucked: Some available in extended play, suggest nunchucking when characters first appear. Written in order of appearance during standard play for clarity.
1: Renaldo (Coach Z, office)
2: Dangeresque Too (Homestar, office)
3: Cutsey Buttons (Marzipan, office)
4: Dr. Experimento (Pom-pom, lab)
5: Diamonacle (Bubs, prison)
6: Killingyouguy (Strong Mad, club)
7: Perducci (King of Town, club)
8: Dadgeresque (Senor Cardgage, Venice)
9: Catacombs Monster (Strong Sad, catacombs)
10: Kidnapping Victim (Poopsmith, catacombs)
11: Sultry Buttons (Marzipan)- The only place to nunchuck her is on the Paris bridge.
12: Informant (Strong Sad, Venice)
13: Uzi Bazooka (Homestar, sun)
14: Craig (The Cheat, sun)
Celebrity Name Drops: All but #6 must be done in standard play.
1: Use the phone right after the game starts, you'll phone THE COMISSIONER from Sam & Max
2: Click on the stick before you pluck the flower, you'll hear that Dangeresque framed the LORAX for murder.
3: Talk meanly to Bubs when he's in prison (can't deduce celebrity name).
4: Show up at the club, and listen to Perducci explain rock, paper, bacarat, which Strong Bad misinterprets as BACHARACH (Burt)
5: Give Dr. Experimento the ruby for the rocket (can't deduce celebrity name).
6: In extended play, click on the cool car, you will see that the voice of the autopilot was provided by BILLY DEE WILLIAMS.
Out & Spit takes: #1-3 must be done in standard play, #4-13 in extended.
1: Use the scissors on Marzipan in the office (before you get her to turn around)
2: Run back and forth in front of Marzipan in the garden (she will eventually mispronounce your name).
3: In Ireland, click on the podium, then talk to Strong Sad about it.
4: Look at the office paintings in extended play
5: Look at the office paintings in extended play again
6: Look at the office paintings in extended play a 3rd time.
7: Look at the Ruby Rocket in extended play
8: Talk to Dr. Experimento in extended play
9: Talk to Dr. Experimento in extended play again
10: Talk to Dr. Experimento in extended play a third time
11: Look at Uzi Bazooka in extended play
12: Talk to Renaldo in extended play
13: Click on Craig in extended play
Space Circus Catastrophe: Score 15,000 points to get green status
Special 100% bonus costume item: Dangeresque Too's Shades
Thanks to all who contributed to finding these elsewhere in the forum, the list is too long to mention everybody.