Bug: If you are driving the steam train, it is impossible to let the fire burn out completely (even if you let the 'Fire Mass' gauge on the HUD go completely to 0) as smoke still emits from the smoke stack.
Bug: Go to Bill's house. Before you enter the door, watch quickly at the back of his house. You'll see a mountain without the usual border.
Bug: In the castle mission (not the one with zombies and dogs) when you go through a big door there is a helmet at the end of the room. Go behind it, and you can see through the walls.
Bug: If you try and offer Captain Dread something that he doesn't want, he turns around and faces Guybrush to decline the offer. If you then try and talk to him however, Dread's face appears on the back of his head, and he somehow then turns around again to face Guybrush.
Bug: Any time you pass through a portal keep holding the movement button in the same direction, sometimes when you are finished going through Spyro will move around but there will be no animation of him doing so. He just glides along on the ground.
Bug: If you stand in front of a bug or a fish and press start right after swinging a bottle at it, you can put another item in the bottle's place and turn it into another bottle. When this happens, the erased item cannot be recovered, and the new bottle will retain the limitations of the original item (for example, turning the Claim Check into a bottle will still be unable to be used by Young Link.).
Bug: There is a glitch where you can walk in the gray/green space that the place was created in any playground. You need a friend. You click on their name, then click "Whisper" and say "Can you teleport to me?" When you see the whisper that "(insert toon name here) is coming to visit you", wait a little, then go through the door. They will teleport near you, and outside of the door (and in the Grayspace). Then, if it worked, you can teleport to them and be in it too. This helps you get to the pillow glitch, which is accomplished by running around Donald's Dreamland in the Gray, and getting to the pillow. Then just jump.
Bug: In multiplayer Battle mode, you can keep shooting Green Shells over and over again which will forever bounce around the track if they don't hit a player, another shell or item, or environmental hazard. If you have enough Green Shells bouncing around, the game begins to not be able to handle all the activity and the smoke behind the shells will disappear.
Bug: Zombies-Buried: In the Haunted Mansion, there is part where a book shelf slides back and forth by the wall where you find a hallway you must pass through. The Ghosts are usually waiting on the other side and rush at you the moment the book shelf slides to the side. But sometimes, the Ghosts will be partly stuck to the wall in the hall way and can't move, easily killed with a few shots before unhindered ghosts begin to take their place.
Bug: Sand Central Station: In the first area of the level, Iron Man and the Hulk have to walk up to the Central Station whilst taking out the sand people up until they reach a huge truck between them and the museum. There will be two huge green levers for the Hulk to pull on. If the level is on Free Play and a standard sized character is standing between the huge green levers and you instantly switch to the Hulk standing in that same position, the Hulk will become stuck and won't be able to run or move away. He will be only able to rotate around in circles.
Bug: On custom stages, if you have the springs set up, there is a glitch with them that occurs with Meta Knight's final smash. If he is in the middle of using his final smash, and any other player happens to touch a spring during that, they instantly freeze and are unable to move until the final smash is over. And it seems to somehow amplify the effects of the smash on the frozen players.
Bug: Use Kirby and eat Yoshi so you copy his eating ability. Then eat Yoshi to turn him into an egg. The person playing as Yoshi must quickly mash buttons and the control stick to break out. When Yoshi is free, he will be smaller. This can be done over and over again, making Yoshi smaller and smaller. He can even get as small as a single pixel.
Bug: Scream Fortress 2014 - Carnival of Carnage: once the tickets are successfully taken to the top of the Strong Man game, Marasmus will send all players into a team decided bumperkart death match. But also on this map Marasmus will periodically cast one of three spells over all players, one of which is underwater mode. Well it's actually under Jarate, but it's technically still called underwater mode. The system for Marasmus' spells runs independently of the bumperkart system and they sometimes overlap. But the spells are not supposed to affect the bumperkarts. However, if Marasmus happens to be casting a random spell, and that random spell is underwater mode, and is cast at the exact moment everybody is sent to the bumperkart track, a glitch happens where the bumperkart track is underwater mode as well. This causes zero gravity which makes dying almost impossible, and if the bumperkart game happens to be Falling Platforms, then the match will carry on indefinitely until a full team either leaves the server or swims down to the teeth for suicide. It also makes Duck Collection and Bumpercar Soccer extremely difficult to play. In bumperkart games, any Marasmus spells that happen to be cast as the bumperkart match starts (Big Heads, Melee Only, or Underwater) will linger in bumperkart mode without a time limit. Big head does not really effect the bumperkart games, and melee only has no effect at all, but underwater is a total game breaking game changer.
Bug: If your computer or connection lags too much on co-op mode, sometimes you will lose connection and be removed from the game back to the menu. Sometimes though, when the connection is lost, the screen just turns black with the spinning Pentagram at the bottom as a loading screen, but it just stays there. You are stuck. You have to close the game down and restart it.
Bug: Go to a level where you can fight the Egg Breaker. Get one of the robot's guns. Keep shooting him until one more shot will kill him. When he jumps up, shoot him before he touches the ground. If done correctly, he will float in mid-air while doing the dying sequence.
Bug: During the mission "Davis Unit" after I made the airborne fortress retreat, I was using a Fregeta and I managed to destroy a bridge with two tanks nearby it. The rear tank stopped as it should have, but the second tank actually drove across thin air and managed to reach the center of the gap where the bridge was. After that, it promptly fell to its death.