[#45] - [w5l5p1]

Upon entering the room, the puzzle piece is to your right, obstructed by a platform above and terrain on three sides.

Climb the ladder on top of the puzzle piece to reach the broad platform above.

Below, you will see a normal door and a purple door, with a switch to their left.

Walk right, and you will encounter a gap. Across this gap, an enemy carrying a key walks above the canvas.

Kill the enemy and take the key.

Drop down through the gap to the left.

Stand next to the normal door without opening it.

Walk right, drop down, and walk left to the purple door. Open the purple door.

Rewind time until you are standing next to the normal door again.

Quickly open the normal door, jump left onto the top of the purple door, and hop up the platforms. If you are fast enough, you can reach the top of the door and ascend before the shadow enemy opens the purple door.

Flip the switch.

Head back to the puzzle piece.