The anthology includes emulated[1] arcade games originally released by Williams Electronics between 1981 and 1983:
Bubbles[i] (1983)
Defender (1981)
Defender II (1981)
Joust (1982)
Robotron: 2084 (1982)
Sinistar (1982) [2]
^ only on Saturn, PlayStation, IBM PC compatibles, Dreamcast
Also included on some versions are bonus materials, video clips, and concept arts, along with access to the original debug menus.[2]