Get all other trophies in the game
Cook the hamster in Maniac Mansion (Don't try this at home, kids!)
Laverne tries the chattering teeth on her human during the human show
Try to put something metal in the microwave
Laverne thinks about eating the cat
Try to swap the textbook with the stamp album
Try to mix the red paint and the Booboo-B-Gone
Try to mix the decaf and caffeinated coffees
Ask the IRS agents if they're related
Try to microwave the hamster again after he's thawed out
Hoagie uses battery with Chron-o-John instead of plug
Return the stamp album to Weird Ed
Turn off the television
Talk to Washington, Jefferson, or Hancock while they're outside
Try to wash the dirty car with the brush
Flush 50 objects through time
Try to flush the hamster
Try to sign the contract yourself with the quill pen
Try to alter the contract with Booboo-B-Gone
Sit through the end credits
Play the whole game without skipping a cutscene
Defeat Purple Tentacle yesterday
Reach yesterday without turning the stereo off
Power Hoagie's Chron-o-John
Pick up 45 things that don't belong to you
Get a job
Red makes a super battery with only a little help from Hoagie
Power Laverne's Chron-o-John
Vacuum up a hamster
Get a tiny sweater
Microwave the frozen hamster
Make a skunk
Win the human contest
Talk to Dead Cousin Ted with all three kids
Disqualify Harold
Enter the human contest
Make vinegar
Clothe Laverne in the costume
Climb through the chimney with all three kids
Ring the front desk bell 100 times
Acquire a diamond
Deflate Oozo
Change the flag
Destroy a cherry tree
Get Fred to sign the contract
Open the safe
Wake up Dr. Fred
Get all six novelty items
Create a cherry tree
Make it rain
Pick up 30 things that don't belong to you
Hoagie eats a Hoagie
Squirt five different people with disappearing ink
Pick up 15 things that don't belong to you
Play Maniac Mansion
Try to mix the disappearing ink with Booboo-B-Gone
Close a door
Find Fred's basement workshop