A strange little side quest
There is a neat bit of history hiding behind the kind of play you find in Merge Cards. Street Fighter II, released in 1991, turned head-to-head arcade fighting into a worldwide phenomenon and helped define the modern fighting-game genre. That old idea kept changing rather than disappearing. Spacewar! appeared on MIT's PDP-1 in 1962 and became one of the earliest influential computer games shared among programmers. The details change, but the appeal of learning a system and trying again is remarkably persistent.
