"Silkworm" is a classic side-scrolling shoot 'em up arcade game released in 1988. It was developed by Tecmo and later ported to various home computer systems and consoles. The game allows two players to control different vehicles, a helicopter (controlled by Player 1) and a jeep (controlled by Player 2), simultaneously. The players navigate through various levels filled with enemies, and they can upgrade their vehicles by collecting power-ups.