A strange little side quest
There is a neat bit of history hiding behind the kind of play you find in Side Defender. Chess changed dramatically in Europe during the 15th and 16th centuries when the queen became the board's most powerful piece. That old idea kept changing rather than disappearing. Computer Space reached arcades in 1971 and became one of the earliest commercial electronic arcade games, even though its controls proved demanding for many players. So a round of Side Defender is not just a quick distraction; it is a tiny stop on a much longer strategy games timeline.