# The 12-frame rule: why squash & stretch rules every cartoon you love

Squash and stretch is the first principle of animation. It’s also, inexplicably, the hill every fan of modern cartoons will die on. Here’s why a technique invented in 1937 still quietly dictates every good cartoon you see in 2026.

## What it actually is

Simply put: when something hits another thing, it deforms. Then it bounces back. The deformation is _squash_. The recovery is _stretch_. Do both well and your cartoon feels alive. Do either wrong and it looks like furniture.

## Examples that prove it

- Looney Tunes: Bugs’ face literally reshapes to sell every reaction
- Spider-Verse: Miles’ leaps stretch a full frame before he lands
- Arcane: fight scenes go crunchy at impact — pure squash language
- The Amazing World of Gumball: squash is the entire directing style

> Great animation doesn’t draw frames. It draws forces.
>
> One of our editors, who is definitely not a fridge magnet

## Where modern shows trip

A lot of lower-budget 3D animation skips squash and stretch because rigs don’t allow for it. The character walks stiff. The body armor never gives. Fans notice. We noticed. _You_ noticed, you just didn’t know the word for it.

Once you see squash and stretch, you can’t unsee it. Sorry in advance.