Below is a list of various glitches that can be found in the game Scooby Doo! Night of 100 Frights!

Death warps are not included in this, as they are numerous, especially in 100% runs.

Definitions:

Skip - A glitch that allows the player to skip parts of a level, or entire levels.

Sequence Break - A glitch that allows the player to obtain scooby snacks or monster tokens, or other items, before obtaining items that would be typically used to obtained them.

Danger - A glitch that hinders your progress.

Other - A glitch that cannot be organised as above.

Skips

Mind Your Manors Part 3 Tiny Skip

This level includes a room with a chandeleir that moves around over a pit. Normally, you have to ride the chandeleir around, but you can simply double jump directly to the platform on the right.

Fishy Clues for Scooby Doo! Part 3 Partial Skip

To skip part of the level, head to the first platform with a Ghost Diver on it, and double jump towards the exit. You should land on a platform and be able to platform your way to the end of the level. Alternatively, if you land on the floor, head to the trampoline to exit the level.

Lighthouse Fright House! Part 2 Partial Skip

To the left of where you first spawn, is a flying fish. By performing a super smash on it, you can reach the bridge above and get to the warp gate early. This skips three bridges and four enemies, as well as some snacks. As such, it is useful only in any% runs. Level Skip Video

Skip a 500 - Snack Snack Gate

Performed right after the last glitch, the snack gate in this level (Lighthouse Fright House! Part 2) can be skipped by warping to Shock On The Dock! Part 2 and performing a smash attack on the broken patch of floor. As you need to get the snack gate for 100%, this glitch is only useful for any%.

Scared Stiff on Skull Cliff! Part 1 Partial Skip

When you begin the level, run left until you reach the button. Instead of activating it, jump off of it towards the level exit, and mash the circle button (ie, whichever button causes you to enter/exit levels). You will skip part of this level and enter the next, with your health reset to 3 tags (which is either beneficial or detrimental, depending on your condition before performing the glitch). This is actually useful on 100% runs as well as any% runs, as you need to backtrack through the other cliff levels for snacks. Level Skip Video

Gloom and Doom Down in the Tomb!: Part 1 Full Skip

One of the easiest glitches to perform, simply warp to Gloom and Doom Down in the Tomb!: Part 2 from A One Way Trip to the Crypt!: Part 3. This skips Gloom and Doom Down in the Tomb!: Part 1, most of Gloom and Doom Down in the Tomb!: Part 2, and a 600 - snack snack gate. As this glitch skips a snack gate and scooby snacks (and an entire level), it isn't useful in 100% runs.

Level Skip Video

These are the two (three including the Monster Gallery) only known snack gates that can be skipped. With a total snack count of 6748, you only need 4450, which is 66% of the total.

Little Lab of Horrors Part 3 Full Skip

To perform this skip, head to Little Lab of Horrors Part 2, and walk to the upper square balcony. Walk to the point underneath the platform holding the warp gate, then climb the wall to the platform. The wall you want is to the left of the platform, and to climb the wall, double jump and glide onto the wall, and you should hit a very small ledge on the wall. If you do not, retry, but if you do, immediately double jump to another tiny ledge to the left of the railing, then double jump to the platform. Naturally, due to the nature of this glitch, it will not help you in a 100% run (unless you miss the platform with the warp gate).

Level Skip Video

Sequence Breaks

Early snack box in Fear On The Pier! Part 2

There is a snack box hovering over the tar. When returning from Part 3, jump on the crab, and land on one of the posts on the other side, then jump to the snack.

Early snacks in On Edge In The Hedge Part 2

In the second part of this room, there is an alternate path. To get to it before you get the plungers, go to the end of the level and dig up the flower. Then jump to the tree, and if you hit a micro-ledge, immediately jump to the upper area, and now you can collect the snacks.

Early snacks in Its A Mean Greenhouse, Scooby! Part 1

There is an area that is blocked by boxes that contains a witch and some scooby snacks. To reach this area, jump on the chandeleir you use to lower a platform, and swing through the boxes.

Early Snack Box in Clamor in the Manor Part 2

This snack box is right at the end of the level. To get it, jump onto the chair on the far right of the room, and jump to the snack. Use your shadow and the shadow of the snack as a guide.

Early Snacks in Mind Your Manors Part 1 and 3

In Part 1, the snacks near the chandeleirs can be reached by jumping off the bats, which is risky, or jumping off the furniture on the walls to reach them. The snacks on the fan cannot be reached.

In part 3, there are a couple of snacks that were meant to be reached with soap. Most can be collected with double jumps, but in the first hallway with ghosts, right as you enter, there is a box that is too high to reach with a double jump. Use an invisible ledge to reach it, like with the Lab skip.

Early Snacks and Monster Token in All Scares Upstairs Part 2

Right in the beginning, there is a staircase that becomes slippery when you land on it. To get past it, jump off the trampoline onto the staircase, and quickly jump again to reach the upper area. From here, you can get all the snacks, and the Monster Token. If you fail, leave the room and re-enter it.

Early Snacks and Knight Armor Powerup in Don't Look Down, Scooby Doo! Part 1

Ordinarily, you need to super smash the gargoyle on the right to get the Knight Armor. You can alternatively helmet off the upper platform and kill the Gargoyle, or land on the gargoyle platform, take a tag of damage, and helmet the gargoyle from inside. Then go up and get the powerup.

Early Snacks in Cower In The Tower Part 1

At the bottom of the level, there is a button that activates a fan and creates some snacks. Walk up to the exit to Panic in the Attic Part 2 and jump down through all the snacks.

Early Snacks and Monster Token in Coast for Some Ghosts! Part 1 and 3

In part 1, there is an area that you would normally need the Plungers to get. To get there early, reach the middle pillar on the main path, then double jump onto the "secret" pillar. From here, get the snacks and return to the main path.

On part 3, the area with the monster token normally requires the super smash to reach. However, the hitbox of the fish bag is always in the same spot, so you can jump to nothing, swing from nothing onto the series of broken boats that will get you to the monster token. It takes some time to practise this jump.

Early Snacks in Scared Stiff on Skull Cliff Part 3

There is an area right at the end that can be reached by performing a super smash on the Ghost Diver and reaching the upper area. There's about as many snacks here, and you don't need to wait for the platforms to reach you.

Early Snacks in Misbehavin'? Cause A Cave In! Part 2

At the beginning, there is an area that the developers wanted you to reach with an umbrella. You can, however, simply double jump to it. If you miss a mid-air snack, you can use the created icicles to have another shot at them.

Dangerous Glitches

Crushed In Mid-Air

The boxes in Coast For Some Ghosts! Part 2 will still kill you if you hit the bottom of them while they are in the air.

Other Glitches

Walking on Water

If you get hit by anything, you will have a window of a few seconds in which you will be invincible. This includes invincibility from water, but not from pits. Hence, in this window, water will not kill you, and you can land on it and immediately jump off of it.