No Illusions

No Illusions is the first level in Tomb Raider: Underworld. It is known for featuring the largest skip in the game: Prologue Skip. The skip was first found shortly after the game was released in 2008. Usually, players drop down from a ledge where a cutscene would play, however, this skip allows the player to avoid this cutscene and jump to the section which is normally reached at the end of Croft Manor. By finishing the rest of the platforming in the level, Lara reaches the cutscenes which lead to Southern Mexico. This skips the levels Mediterranean Sea, Coastal Thailand, and parts of Croft Manor. In speedruns, it skips approximately 15 minutes of gameplay.

Fire Pit Skip
Fire Pit Skip is a skip in which the player can avoid some platforming, while saving time. There are four ways to do the Fire Pit Skip in increasing difficulty. The easiest but slowest way to do the skip is to do the platforming mostly casually, spamming Action to speed up movement, and jumping to save time.

The second way skips the platforming. To do this, Lara must get a stumble at the end of the ledge before performing a mid-air swandive jump. This is done by pressing Jump, waiting a small amount of time, pressing Roll to do a standing-still swandive and then jump at then end of the roll to jump mid-air. Finally, do a swandive while doing this jump to make it to the other side. On lower FPS, Lara may get stuck in collision, this is known as the Ostrich bug.

The third method is only slightly faster than the second, but is still a time advantage. To do this, you must make Lara stumble on the ledge, and hold forward for a short period of time before doing a delayed swandive jump. If done correctly, you should make it to the other side. This method is harder than the second.

The final method is the hardest to perform but is the fastest. It involves getting a stumble on the ledge but cancelling it by repressing forward. From here, do a delayed swandive jump to make it to the platform.

Debris Skip
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Prologue Skip
There are three ways to do the Prologue Skip. The beginner version involves jumping off the ledge and pressing grapple and jump to avoid the cutscene trigger. Lara then needs to go around this trigger to jump onto the ledge. From here, Lara needs to ascend to the top to finish. It is the slowest but easiest method of doing Prologue Skip.

Alternatively, there is the advanced version of the Prologue Skip which involves walking up to the left side of the pillar and then doing the following sequence. Lara needs to aim right with the mouse with her guns pulled out. From there, she must perform a mid-air swandive jump. By turning the camera now to the left, and commencing the mid-air swandive jump by pressing Space, Ctrl a bit delayed and waiting until the roll is finished, before jumping while holding forward, she can grab the ledge if done correctly. There are a few outcomes with this setup. For one, you can grab the upper ledge which is the fastest, however you can also grab the bottom ledge which is a bit slower. The last outcome is where she misses and the cutscene will play, meaning the skip has failed. It is faster than the beginner method but is slightly harder. It is a good compromise for speed and complexity.

The fastest way to do Prologue Skip is with the expert method. This method is similar to the advanced method, however there is little to no setup. Lara needs to stand near the end of the ledge before initiating the mid-air swandive jump. While this is occurring, the camera should be turned towards the left to grab the ledge. The outcomes for this method are the same as the advanced method however this version is the fastest for Any% Glitched runs.