Flip Block in JJS is a switch-style control block , usually grouped with the logic/control side of build-mode blocks rather than a movement or damage block.

What it does

  • It makes a connected block behave like a toggle.
  • Instead of needing a constant signal, it flips on and off with each input.
  • In practice, players use it for alternating signals, timers, and simple logic builds.

Easy way to think about it

If a normal block is like a button you hold down, Flip Block is more like a light switch: one signal turns it on, the next signal turns it off.

Best category label

For a post or guide, the cleanest category would be:

  • Build Mode
  • or Logic / Control Blocks if your categories are more specific

If you want, I can also format this as a short forum reply or a cleaner HTML snippet.