Oblast: a better Blasto game for the Commodore 64

Way back (well, six months ago, anyway), when I was wiring up a Gremlin Blasto arcade board , we talked at length about this 1978 arcade game's history and its sole official home computer port by Milton Bradley to the Texas Instruments 99/4A. In the single player mode you run around in a maze and try to blow up all the mines, which can set off sometimes impressive chain reactions, all the while…