This is awesome. I remember playing metroid at a friend's house who had a NES, wondering "Why do all rooms look similar?!". We spent hours drawing maps by hand

This is awesome. I remember playing metroid at a friend's house who had a NES, wondering "Why do all rooms look similar?!". We spent hours drawing maps by hand so we wouldn't get lost through levels. The map is super clever. The whole game map is 1Kb of memory (MetroidTilePage.txt:line 4658). A 2d array and each byte has the ID of a room sprite. So that's why all rooms were the same :)