FPS experiments compilation on Amiga 1200 coded in Blitz Basic 2

I had an Amiga 500/1200 during the early 1990s and after coding in assembly for many years I moved onto the excellent Blitz Basic 2. Here's a compilation of some FPS experiments I coded. At the time I had recently played DOOM on PC and wondered how easy it would be to make something like that on Amiga given that it was a much slower machine. The answer is, pretty difficult and I didn't get far!