Kelvin and the Infamous Machine

Real-life time traveler

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

Blasts from the past

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

You didn't hear it from me, but...

Find the hidden picture in Chapter 3.

Let's do the time warp again!

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

World's worst hider

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

Did you seriously just GUESS that?

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

Dream wrangler

Help the sleeping guard catch the centaur.

Plumbing the depths

Explore the sleeping plant for evidence of a previous meal.

A (semi) private moment

Find the hidden picture in the finale.

If it doesn't work this time I quit

Perform a toast with the mug filled to each level.

If it looks like a duck...

Check yourself out in the mirror.

Librus distractificus!

Find the hidden picture in Chapter 2.

Actually reading the terms and conditions

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

At least he's good at math

Experience every excerpt from Newton's fanfiction.

A meeting of the minds

Complete the finale.

:)

Complete Chapter 3.

Frustrated fireman

Hit the unbreakable emergency glass with the hammer three times.

On the shoulders of nitwits

Complete Chapter 2.

Subito fortissimo

Find the hidden picture in Chapter 1.

DUN-DUN-DUN-DUNNNNNN

Complete Chapter 1.