Regulus (315-5033, rev. A) is an arcade game identified by its version number, suggesting multiple revisions during its development cycle. The number '315-5033' may represent an internal code or identifier used by its developers.  Version 'A' implies that this version is a revision with potential improvements or modifications over earlier versions.  Further research could reveal specifics about the gameplay, the developers, and the release date.  The revision number hints at a process of iterative development aiming for game improvement.

Regulus (315-5033, rev. A)

Red Hawk (Korea)