In front of the theater:
--Take the dark light ball.
--Take the candle (just revealed).

In the alley:
--Take the $1 Sign.
--Give the light ball to the Soothsayer.

In front of the bar:
--Use the $1 sign on the "Free" sign.

In the lobby:
--Take the hammer.

In the alley:
--Give the ring toss guy a coin.

In front of the theater:
--Use ring on cone.
--Use hammer on ring on cone.

In alley:
--Use expanded ring on ring toss.

In lobby:
--Use candle on candlestick.
--Use coin on gumball machine.
--Use ticket on Impresario.
--Enter theater.

In theater:
--Use (lit) candle on lamp (in dark area).
--Take broken ladder (slotted stick).
--Take mop (mop strings, next to closet).

In lobby:
--Open showcase.
--Use slotted stick on flute.

In alley:
--Use flute on vase.
--Take cobra.

In theater:
--Use cobra on wealthy people.
--Take clothing ticket.

In lobby:
--Use clothing ticket on Impresario.
--Combine mop strings with top hat.
--Use costume on Kelvin.

In front of bar:
--Talk to bouncer while wearing disguise. Enter bar.

In bar:
--Play Rock Paper Scissors. Lose.
--Buy needlessly elaborate cocktail.
--Attempt to buy "strongest thing you've got" (fail).
--Take peanuts.

In theater:
--Talk to doctor. Attempt to get prescription. Fail.
--Use peanut on Kelvin.

In bar:
--Use prescription on bartender.

In alley:
--Dump cocktail down drain.
--Use melaskia on cocktail glass.

In bar:
--Talk to The Shuffler. Ask if buying him a drink will get you his cards.
--Use evil cocktail on The Shuffler.
--Take cards.

In alley:
--Give cards to soothsayer.

In theater:
--Look at bulletin board.
--Inspect RPS rules sheet.

In bar:
--Play RPS. For final move, play "horns."
--Use beer chip on bartender.
--Use gumball on Kelvin.
--Use chewed gum on mug.
--Talk to the party.

In alley:
--Use mug on water spout. Fill halfway.

In bar:
--Use half-filled mug on party.

In front of library:
--Open drop box.
--Take letters from drop box.

In library:
--Take horn from armor.
--Take mortar from bookshelf.
--Take trunk from elephant statue.
--Take hand from Lupin statue.

In woods:
--Take wood chips.
--Take smoldering charcoal.

Sidestreet:
--Talk to tea merchant. Ask how the machine works.
--Try to take funnel from machine.
--Order a tea.
--Use wood chips on funnel.
--Order another tea.
--Take funnel.
--Use funnel on inlet pipe.
--Use trunk on elbow in pipe.

In library:
--Take jar (sulfur).

In meadow:
--Take rake.
--Take saltpeter.
--Use letters on mailbox.
--Talk to Newton. Tell him he has mail.

In Newton's Yard:
--Quickly duck behind bushes. (Note: if you fail to duck behind bushes, simply repeat mail process. The letters were never removed from your inventory.)
--Open toolbox.
--Take tongs from toolbox.
--Open whirligig (stuck).
--Take gear from whirligig.
--Use rusty gear on buckets.

On golf course:
--Open "Par 2" panel.
--Use (not-rusty) gear on mechanism.
--Take ball from in front of library.

In woods:
--Use wooden hand on lumberjack.
--Take wooden finger.
--Walk right.
--Use wooden finger on fence.
--Use ball on dog.
--Take scissors.
--Use tongs on smoldering charcoal.

In Newton's Yard:
--Use scissors on water well.

In front of tower:
--Combine coal with mortar.
--Combine sulfur with mortar mixture.
--Combine saltpeter with mortar mixture.
--Use gunpowder on tower door.
--Use hot coal with tower door.

In tower:
--Use rake on metal contraption.
--(Try to) take disc.

In front of tower:
--Take disc.

In library:
--Try to take magnet.
--Talk to librarian. Tell him you're here to inspect the magnet.
--Take magnet.
--Combine magnet with metal disc.
--Return magnet.

In tower:
--Use plumb-bob with central statue.
--Use magnetized disc with bowl.
--Talk to sculptor. Tell him the statue is crooked.

In woods:
--Use horn on Kelvin.

In town:
--Inspect mysterious door. Watch cutscene.

In the store:
--Take recipe book page.
--Read page.
--Take incense.

In shack:
--Take hoe.
--Take sheet.
--Take sock from shoe.
--Inspect note.
--Inspect paintings.

At the river:
--Take pepper.

In kitchen:
--Mention a pigeon.
--Quickly use hoe on door.
--Take bottle.
--Take eggs.
--Take meat from pot.

In cemetery:
--Use pepper on plant.
--Take key.

In town:
--Use key on sign.
--Set sign to match current moon conditions. (Robot hands, sunglasses smile, as per note.) Click "Knock Knock" while still looking at sign.
--Use sheet on cart.

In lab:
--Click on conspicuously inconspicuous book.

In design studio:
--Take helicopter.
--Take painting.
--Take extendible arm.
--Read to-do list.
--Take blueprints.

In cemetery:
--Talk to gravedigger about leg bone.
--Give painting to gravedigger.

At castle gate:
--Show blueprints to guard.
--Combine blueprints with dye formula.
--Have duke's assistant sign the blueprints with formula.
--Combine incense and extendible arm.
--Use incense arm on beehive.
--Use helicopter on barrel.
--Take honey from beehive.

Behind castle:
--Take grappling hook.
--Combine sock with bottle.
--Use bottle on rat hole.

In cemetery:
--Use honey on headstone.
--Take feather from headstone.
--(Decline to) interact with the plant again.

In store:
--Use trapped rat on alchemist.
--Ask alchemist about plant.
--Ask about making potion re: signed recipe.
--Use store credits on pills for plant.

In cemetery:
--Combine plant pills with meat.
--Use pill-covered meat on plant.
--Take tentabell root.

In store:
--Use feather on alchemist.
--Use tentabell root on alchemist.
--Use bone on alchemist.

At river:
--Use grappling hook on facade.

On roof:
--Use tincture on hole.

In gallery:
--Take mirror.

Behind castle:
--Talk to jesters.
--Open manhole.
--Use mirror on manhole.
--Use file on jesters.

In design studio:
--Use eggs on paints.

In gallery:
--Ask jesters to switch things up.
--Use eggs on bag.
--Ask jesters to switch things up again.

In the theater lobby:
--Take a cane.

In the library:
--Take the diamond on the central bookshelf.
--Take the magnet.

In the studio:
--Take the compass.
--Use the cane on the wheel.

In the theater:
--Combine the compass and the diamond.
--Use the diamond compass on the horn.