Start the game. Completed.

Get the Invisible ability. Completed.

Get the Strike ability. Completed.

Start a co-op level. Completed.

Help each other for the first time. Completed.

Pass the gate with the timer. Completed.

Pass the key through the portal. Completed.

Provoke a rockfall. Completed.

Complete the rope ride. Completed.

Defeat the Slug. Completed.

Find the twin monuments. Completed.

Find the hidden stone. Completed.

Steal the key from the Phantom. Completed.

Hide from the Phantom. Completed.

Jump on the invisible platforms. Completed.

Open the doors using a beam. Completed.

Complete the key puzzle. Completed.

Complete the Phantom puzzle. Completed.

Go through the thorny grove. Completed.

Get on the elevators to the portal. Completed.

Defeat the Phantom. Completed.

Go through the magical tunnels. Completed.

Solve the dam puzzle. Completed.

Solve the weight balance puzzle. Completed.

Dodge the boulder. Completed.

Assemble the beam generator. Completed.

Exchange the keys in time. Completed.

Complete the beam puzzle. Completed.

Find a clue using a torch. Completed.

Build a tower using boxes. Completed.

Dispel the darkness with a beam of light. Completed.

Find a way out of the maze. Completed.

Defeat the Caster. Completed.

Run through the dark tunnel together. Completed.

Go through the darkness, follow the light. Completed.

Defeat the Reaper. Completed.

Finish the game. Completed.