
| icon | info | gamerscore |
|---|---|---|
| OCD Get all other achievements in the game | 90 | |
| Number One Power Hoagie's Chron-o-John | 50 | |
| Number Two Power Laverne's Chron-O-John | 50 | |
| Flush Acquire a diamond | 50 | |
| Yesterday's News Defeat Purple Tentacle yesterday | 90 | |
| Mental Patience Play the whole game without skipping a cutscene | 15 | |
| ...Take on the Words! Sit through the end credits | 15 | |
| Rap Sheet: Trespasser Find Fred's basement workshop | 10 | |
| Rap Sheet: Yegg Open the safe | 10 | |
| Rap Sheet: Cheat Disqualify Harold | 10 | |
| Rap Sheet: Vandal Deflate Oozo | 10 | |
| Rap Sheet: Fraud Try to alter the contract with Booboo-B-Gone | 15 | |
| Rap Sheet: Forger Try to sign the contract yourself with the quill pen | 15 | |
| Rap Sheet: Thief Pick up 15 things that don't belong to you | 10 | |
| Rap Sheet: Kleptomaniac Pick up 30 things that don't belong to you | 10 | |
| Rap Sheet: Adventure Gamer Pick up 45 things that don't belong to you | 15 | |
| Master Plumber Flush 50 objects through time | 15 | |
| Moronic Drone Get a job | 10 | |
| Only Hoagie Can Make a Tree Create a cherry tree | 10 | |
| Only George Can Destroy a Tree Destroy a cherry tree | 10 | |
| Windsock it to Me Change the flag | 10 | |
| You Call That a Hint? Try to wash the dirty car with the brush | 15 | |
| Obvious, Really... Make it rain | 10 | |
| Not Raised in a Barn Close a door | 10 | |
| Novelty Enthusiast Get all six novelty items | 10 | |
| WWSCD? Climb through the chimney with all three kids | 10 | |
| Costume Quest Clothe Laverne in the costume | 10 | |
| Chateau Eau Neaux Make vinegar | 10 | |
| It's an Honor Just to Compete Enter the human contest | 10 | |
| Can't Win and Chew Gum at the Same Time Laverne tries the chattering teeth on her human during the human show | 15 | |
| Winning Is Better Win the human contest | 10 | |
| Our Lazy Speechwriters Didn't Cover This Talk to Washington, Jefferson, or Hancock while they're outside | 15 | |
| Behind Every Great Man Is a Quality Roadie Red makes a super battery with only a little help from Hoagie | 10 | |
| That Should Have Worked Hoagie uses battery with Chron-O-John instead of plug | 15 | |
| Coffee Achiever Wake up Dr. Fred | 10 | |
| Of Course It Would Still Weigh the Same Get a tiny sweater | 10 | |
| Don't Try This at Home Microwave the frozen hamster | 10 | |
| Now You're Pushing It Try to microwave the hamster again after he's thawed out | 15 | |
| Oh Right, I'm Playing a Cartoon! Make a skunk | 10 | |
| You Suck Vacuum up a hamster | 10 | |
| Dialog Puzzles Are Hard Get Fred to sign the contract | 10 | |
| Dude, It's Like, Cannibalism Hoagie eats a Hoagie | 15 | |
| Music Appreciation Award Reach yesterday without turning the stereo off | 15 | |
| Olive Branch Return the stamp album to Weird Ed | 15 | |
| Energy Conscious Turn off the television | 15 | |
| Games History Major Play Maniac Mansion | 15 | |
| We're All Brothers Ask the IRS agents if they're related | 15 | |
| Are You My Mummy? Talk to Dead Cousin Ted with all three kids | 15 | |
| That Joke Never Gets Old Squirt five different people with disappearing ink | 15 | |
| Missing Pink Try to mix the red paint and the Booboo-B-Gone | 15 | |
| And Then the Universe Explodes Try to mix the decaf and caffeinated coffees | 15 | |
| And Then the Universe Implodes Try to mix the disappearing ink with Booboo-B-Gone | 15 | |
| That Only Works with Alligators Try to flush the hamster | 15 | |
| I'm Sure He'd Never Notice Try to swap the textbook with the stamp album | 15 | |
| ESRB Violation Laverne thinks about eating the cat | 15 | |
| Voiding the Warranty Try to put something metal in the microwave | 15 | |
| Most Annoying Guest Ever Ring the front desk bell 100 times | 15 | |
| Chef Cook the hamster in Maniac Mansion (Don't try this at home, kids!) | 15 |