Swap Blocks

This page refers to the Chamber in Chapter 3. For the Mechanic, see Mechanics#Chapter\_3.

"Swap Blocks" is the thirteenth Test Chamber of Chapter 3 taking place in Test Track 08. It contains 3 Slimeballs and no Levers. The soundtrack playing in this chamber is "Swap Blocks and You!", the twelfth song of the album.

## Description

The chamber introduces the player to Swap Blocks. It is separated into a front and a back half, the latter of which is in a four-quadrant layout with different fields inbetween. Its solution is very extensive and requires an intuitive understanding of how Swap Blocks work.

## Solution

> "If you have any questions, just keep trying!" that's all you need to write.
>
> Stockley, In chat in a stream

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For a video version, see the official walkthrough.

First, spawn Slimeball #1 and drop it into the Swap Block next to you. This will teleport the Slimeball to the *exit* Swap Block inside the building, which you can observe through the glass window. Make your way inside the building through the Anti-Science Field to your right and pick up the Slimeball. The button you see here connected to the exit Swap Block is used to switch out which exit Swap Block is currently active (there are two in this chamber, this one is already active) and have all future Slimeballs sent to this one.

Use the Slimeball to unlock the door further down the hallway you entered from, then make your way through to the back half of the chamber. You might want to spawn in Slimeball #2 on your right, but this is actually not of any use yet. Walk through the Anti-Science Field straight ahead, spawn Slimeball #3, then collect it on the other side of the Anti-Science Field. Thrown the Slimeball through the death field, then take a trip around the central pole to pick it back up. Place the Slimeball on the pressure plate in the wall, spawn Slimeball #2 and take it with you to collect Slimeball #3.

Throw both Slimeballs through the death field, take the roundabout and place Slimeball #2 on the pressure plate connected to the nearest Anti-Science field. Now, throw Slimeball #3 into the entrance Swap Block next to the Slimeball #3 dropper. (In case you activated the exit Swap Block in the back half: disregard Slimeball #3 and make your way back to the front half of the chamber. Activate the exit Swap Block, make your way back and re-spawn Slimeball #3, and throw it into the entrance Swap Block.)

Make your way towards the exit Swap Block in the front half of the chamber and pick up Slimeball #3. Swap it with Slimeball #1, then make your way back through the door (You may let Slimeball #1 get destroyed). Activate the exit Swap Block in the back half, then make your way all the way to the entrance of the chamber. Re-spawn Slimeball #1 and throw it into the entrance Swap Block, then make your way back to where it should now sit. Now throw Slimeball #1 through the death field.

Take the roundabout again, re-spawn Slimeball #3 and pick up Slimeball #2 from the pressure plate. With all three Slimeballs at hand, occupy all three pressure plates locking the exit door to unlock it and take a final round of the roundabout to exit the chamber!

◀ Chapter Overview Page | ⬅ Chamber 02: Fusion | Chamber 04: Out of View ➡