Editing Stargate (1981 video game) (section)

==Ports==
Ports of ''Stargate'' were being developed for the [[Atari 5200]] console<ref>{{cite web |last=Reichert |first=Matt |title=Stargate (Atari 5200) |website=AtariProtos.com |url=http://www.atariprotos.com/5200/software/stargate/stargate.htm |accessdate=September 19, 2014}}</ref> and the [[Atari 8-bit computers]]<ref>{{cite web |last=Reichert |first=Matt |title=Stargate (Atari 8-bit) |website=AtariProtos.com |url=http://www.atariprotos.com/8bit/software/stargate/stargate.htm |accessdate=September 19, 2014}}</ref> by [[Atari, Inc.]] programmer Steve Baker in 1984, but were not released. The game was also ported to the [[Commodore 64]], [[Apple II]], the [[Amiga]], [[Atari ST]] and [[IBM PC]].

The [[Family Computer]] port developed by [[HAL Laboratory|HAL]] (renamed ''Star Gate'', and later named ''Defender II'' for U.S. release) has some elements in common with their ''[[Millipede (video game)|Millipede]]'' (renamed ''Milli-Pede'', later named back to ''Millipede'' for U.S. release) and ''[[Joust (video game)|Joust]]'' ports, as well as ''[[Punch-Out!! (NES)|Mike Tyson's Punch-Out!!]]'', all of which were released around the same time. In particular, the title jingles for ''Milli-Pede,'' ''Star Gate, and'' ''Joust'' are almost identical, the music played when ''Star Gate'' begins is a longer version of the opponent entrance music from ''Punch-Out!!'', and the music played during ''Star Gate''<nowiki>'</nowiki>s intermission screen between waves is the same as the screen after a loss in ''Punch-Out!!''.

=== Name change ===
The ''Defender II'' name was used in some home releases, due to legal issues (according to the bonus material for ''[[Midway Arcade Treasures]]'', Williams wanted to "make sure they could own the trademark" on the ''Defender'' name). The name ''Defender II'' has been used on many home ports and game compilation appearances, but not in arcades. The [[Atari 2600]] port was originally sold as ''Stargate'', but was renamed to ''Defender II'' for a later re-release.<ref>{{cite web|url=https://www.atariage.com/software_page.php?SoftwareLabelID=130|title=AtariAge - Atari 2600 - Defender II (Atari)|website=www.atariage.com}}</ref> The Amiga and Atari ST ports were developed by [[Jeff Minter]] and includes ''Defender'', ''Stargate'' and ''Defender II''.<ref>{{Cite journal |last=Campbell |first=Colin |date=January 1991 |title=Defender II |url=https://amr.abime.net/review_825 |journal=Amiga Format |issue=18 |pages=58}}</ref>