Residue Processing intro skip skips the long intro sequence with the crusher at the beginning of the Residue Processing chapter. It saves around 40 to 45 seconds if done well.

It was found by Varial on December 7th, 2018.

[section=How-to]

• After gaining back control, go up to the control room as fast as possible.
• Grab the bucket on the shelf and then head down back to the crusher.
• Jump on the box and hold the bucket like this.

• Now crouch ram the bucket into the crusher while still standing on the pile of crates.
• If done correctly, the bucket should go right through the crusher.

• Now stand and run and jump down onto the space behind the crusher wall behind you.
• Ram the bucket into the crusher wall like so.

• Keep ramming it into the wall, making sure that you're inside the bucket. Once you stop moving, save/load. You should now start clipping into the floor.

[section=Explanation] ##Why does the bucket lose collision and go through the crusher? The crusher wall is actually a func_door but moving sideways. It's Blocking damage property is set to 1000 and Force Closed set to True, meaning for every frame, the game will damage any prop or object blocking the door by 1000 HP. So if you use any breakable prop (such as wooden crates) to block the door, it will break as normal. However, if you use an unbreakable prop like the cone, what the game will do is to temporarily disable collision for the prop, allowing us to get stuck in it and clip with it. In this case, as we push the prop against the crusher wall, the game will think that the bucket is blocking the crusher wall, thus temporarily disabling its collision.

[small]Part of code executing this.[/small]