In the second crossover, Bumblebee is among the Autobots sent back in time due to an accident with the spacebridge computer Teletran-3. ... He is then executed by Serpentor, who would later comment that Bumblebee's death is the only thing that ever really made him feel emotion.

How did Bumblebee shatter die?

A large boat was rushed along the water and as it grew close, Bumblebee pushed Shatter into it, getting caught in its drift. The boat moved on, pulling Shatter with it, until it slammed into the dock, crushing Shatter, and blowing her apart, killing her.

Who killed Bumblebee in Transformers?

Despite resistance from Starscream and his armada, the two made it to the control room and Smokescreen returned with the Star Saber. Bumblebee climbed down the Lock to give to Optimus, but as he jumped he was shot numerous times by Megatron.