Rust-ray rifle

I had a Rust Gun before he made it cool.

Autobots with two heads love to make their enemies rust. This is a fact.

Doublecross carries a rust-ray rifle, and Doubleheader carries a rust-ray gun. Both fire rays that make metal rust.

The Omnibot Downshift also totes a rust rifle for all his dimension-hopping misadventures.

Fiction

Dreamwave Generation One continuity

In robot mode the Monsterbot Doublecross carried a rust-ray rifle that corroded an enemy's armour until it disintegrated. Doublecross's More than Meets the Eye profile Similarly, Doubleheader wielded a corroding rust-ray gun. Doubleheader's More than Meets the Eye profile

Toys

The Transformers

• Downshift (Omnibot, 1984)

• Accessories: 2 magnetic-guided rocket launchers, rust rifle

The Transformers Downshift (a.k.a. Camshaft in Japan) came with a chromed gun, identified as a rust rifle in his instructions.

• Doublecross (Monsterbot, 1987)

• Accessories: rust-ray rifle

Doublecross came with a white rust-ray rifle, according to his instructions and packaging bio.

• Doubleheader (Pretender, 1989)

• Accessories: double helmet, rust-ray gun, acid pellet pistol, wings/backpack

Doubleheader came with a small grey rust-ray gun for his inner robot to wield, according to his instructions and packaging bio.

Notes

• Downshift's unpublished Marvel Universe profile confirms that he would have carried a rust rifle in that continuity, while his Dreamwave More than Meets the Eye profile eschewed the rust rifle in favour of his neural shock gun.