These are some of the bugs or errors that happen in Bad Piggies.
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 could sometimes be caused by Hyperdrive Dragster by using 2 springs with a driving wheel or a mechanical yellow umbrella. Just wait until this happens (best if you do this on S-2).
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 Wheel Glitch
If you place a suction wheel 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.
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 comes back in.
If a lot of TNTs are placed on the springs, the springs go haywire, forming a piece of lightning, knocking out several other parts, leaving you with nothing but parts and the pig on the ground.
To do this glitch, first, make a heavy-weighted vehicle with sandbags 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 have glue with something there and play originally until lots of stuff is flying all over and falls on the ground.
In all versions of the game except v1.9, if you stack two wooden boxes, place the pig in the top box, and then place 3 TNTs in this format: two spaces above, one space above and one to the left, and one space above and one to the right, when they drop and explode, the pig's pupils will be missing. Check out the YouTuber Smankusors for more information.