Perform a toast with the mug filled to each level.

Hit the unbreakable emergency glass with the hammer three times.

Listen to all of the bartender's disclaimers without skipping any.

Complete Chapter 1.

Find the hidden picture in Chapter 1.

Experience every excerpt from Newton's fanfiction.

Get kicked out of Newton's yard in three different ways.

Complete Chapter 2.

Find the hidden picture in Chapter 2.

Check yourself out in the mirror.

Set the correct combination for the Vitruvian sign without first finding the clue for it.

Help the sleeping guard catch the centaur.

Explore the sleeping plant for evidence of a previous meal.

Find the hidden picture in Chapter 3.

Complete Chapter 3.

Dodge Lupin's laser shots until he runs out of one-liners.

Find the hidden picture in the finale.

Complete the finale.

Reset your progress on a chapter you've 100% completed.

Start up the game before a certain other time-traveling adventure game was even released.