Missingno is Pokemon number 0.
It shows up when a pokemon battle is started without the enemy pokemon's stats being put into the right place in memory.
That coastline wasn't included in the spawn zone of the water next to it, but it also didn't have the no enemies property of the city.
It would only damage your savegame if you caught it.
Hey I'll take that deal! Us in Jesusland will have most of the crop and industrial production areas while Canada will be mostly artic terrain. Then once Canada's socialist wonderland come crashing down we can invade Canada for oil and own everything!
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