Thomas Was Alone

Chapter 0 Level 3

Chapter 0 Level 5

Hovering above the water. You will die, but keep the achievement.

Chapter 1 Level 8

Use John's Jump to reach this section.

Chapter 1 Level 9

Use John's Jump to reach this section.

Chapter 2 Level 4

You will have to act quick. You will most likely die, but will keep the item.

Chapter 2 Level 9

Right below the spikes on this platform. You will most likely die, but will keep the item.

Chapter 3 Level 4

Bounce Chris onto Laura.

Chapter 3 Level 8

Elevate John with the top-right platform, and then jump towards the wall.

Chapter 4 Level 4

Hug the right side of the wall and avoid the spikes.

Chapter 4 Level 8

Right in front of the wall of spikes before it starts moving. You will die, but keep the item.

Chapter 5 Level 1

Walk to the very end, it is under the portal.

Chapter 5 Level 4

Make Thomas jump up.

Chapter 6 Level 2

Double-jump with Sarah near the very top.

Chapter 6 Level 7

Right above the spikes.

Chapter 7 Level 1

Bounce off of Laura with John.

Chapter 7 Level 10

Double-Jump with Sarah.

Chapter 8 Level 5

Drop down at the very end under the water.

Chapter 8 Level 10

Double-jump with a purple Grey.

Chapter 9 Level 2

Send one of Team Jump into the torrented water.

Chapter 9 Level 10

At the very top left corner of the entire level. Better to use an inverted character.

Bounce on Laura 100 times.

AFK a character on Laura for this if you didn't get it naturally.

Jump 800 | 1600 | 2400 times.

You should get this one simply by playing. If not, just jump until you get it.

Die 100 times

If not naturally-occurring, jump into water until you get it.

For each achievements, begin a level and the last one, beat the game