The first Stretch Smash was created from Sawa Takigawa after she was abducted by Faust under the direction of Juzaburo Namba after her position as a spy for Namba was compromised. She was later freed from her transformation by Kamen Rider Build.
Stretch Smash Hazard
A Stretch Smash Hazard was later created by Night Rogue from an unnamed Touto soldier. He went after Misora Isurugi but was defeated and had his transformation reverted by Kamen Riders Build and Cross-Z.
Stretch Clone Smash
A Stretch Clone Smash was later engineered by Nariaki Utsumi. It was used by Blood Stalk along with a Press Clone Smash to fight Kamen Riders Build and Grease as he attempted to claim the box, but was destroyed by Cross-Z Magma.