The boot up menu requires ECS I believe. It should handle NTSC/PAL issues better, though not perfectly. Worth checking out, though most 500's weren't upgraded to ECS (since it broke a few games compatibility)
Well, the boot-up menu really only requires Kickstart 2 or above, but switching between PAL and NTSC could well require ECS - I don't know.
Yep, it does look like your standard NTSC game alright. By programming for only 200 lines, programmers could be sure that the game at least worked on both PAL and NTSC Amigas, even if you got a black band across the bottom of the screen. The other way around resulted in the bottom of the screen being missing when PAL games were played on NTSC Amigas, which is a less desirable result I guess...