Melting Pig Glitch
If you land on the ground hard enough (most of the time caused by TNT), your pig will be under the ground.
This coud sometimes cause by Hyperdrive Dragster by using 2 springs with a driving wheel or mechanical yellow umbrella. Just wait until this happens (best if you do this on S-2).
Wireframe/Thin Spring Glitch
If you add 2 "TNT"s on top of 2 springs, it goes thin/wireframe looking. ( Note: This works if the item parts is 5x5/with 2 TNT and 2 springs.)
Exploding Rope Glitch
If you have the plunger wheel over the ropes, the ropes will explode and will become thin orange lines surrounding every part of the screen (except the buttons and the pause menu).
Flying King Pig and Tire Glitch
If you place a suction tire on a box and King Pig on the tire, all three of them will soar into the air, in some cases hitting the ceiling in the Field of Dreams.
Invisible Black Hole Glitch
If at any time you are getting to a good start, the invisible black hole will appear, and will suck up every part (and pig) into the hole, leaving you with nothing but just the background. (Note: It does not matter which background you are in.)
Sucker Punch Glove Glitch
If you launch two sucker punch boxes, one glove from one box will come out and come back in the box, and the other glove from the other box, will come out, but will stay out once it will come back in.
If a lot of TNTs are placed in the springs, the springs go haywire, forming a piece of lightning, knocking out several other parts, leaving with nothing but parts and a pig on the ground.
To do this glitch, first, make a heavy-weighted vehicle with sand bags at the bottom. Then start. Then drop the sandbags. Notice that they will go through the ground/stone/surface. Tested on FITN Sandbox 1
Plumbing tool in the air
On any level that has TNT and the Plumbers tool, if you can do it correctly, the plumbing tool will be in the air connecting to the TNT even though it already exploded.
Some of the videos has glue with something there and play originally until lots of stuff is flying all over and fall in the ground.