Yeah, for future reference if anyone googles this and find this thread: It's in the viewport's N panel, under 'View', where you'll find the Clip Start and End settings.
You are missing Ghosts 'n Goblins for the NES on your list. There is barely anything more difficult than that one on that platform, and you have to beat it twice.
edit: tr.v., rigged, rig·ging, rigs. 1. To provide with a harness or equipment; fit out. n. (Abbr. CPU) The part of a computer that interprets and executes instructions.
Its your topology around the indent that is causing the triangle like shading error. In this case, having an n-gon to terminate the loops is giving you the error.