Strain-R

Strain-R is an AllSpark Mutation from the live-action film continuity family.

You can't see me!

_{This character has no official visual representation in any Transformers product or media... yet, at least.}

Strain-R is an AllSpark Mutation that transforms into a colander.

Fiction

The AllSpark Almanac

Strain-R's alternate mode was part of a crossword puzzle in ALTernity Today. The AllSpark Almanac II