Continuity error

Dead men standing
There have been several examples of characters appearing after they have supposedly died, most notably in The Transformers: The Movie. Brawn and Huffer made appearances in the third season of the cartoon, while Prowl and Wheeljack showed up on the The Headmasters and Victory from Japanese anime series respectively.

Wrong place at the wrong time
Sometimes, characters who have been captured or gone missing will suddenly show up in their base or team with no explanation.

Notable examples
Image:FireintheSky Gears AninconvienientTruth.jpg|"Hey, check out the poster I found to cover the broken screen!" Image:Fakebroadside KillingJar.jpg|Cyclonus should've checked his 1986 catalog, or he'd never have fallen for this one.  Image:Retcon.jpg|
 * Generation One