In the White Rabbit's House, complete all Clocks on the Clocks Wall first

Sit through the end credits

Play the whole game without skipping a cutscene

Reach yesterday without turning the stereo off

Flush 50 objects through time

Hoagie uses battery with Chron-o-John instead of plug

Red makes a super battery with only a little help from Hoagie

Power Laverne's Chron-o-John

Laverne thinks about eating the cat

Make vinegar

Wake up Dr. Fred

Try to sign the contract yourself with the quill pen

Win the human contest