One reason for the gap in those specific titles is FZX and SSB use 1 cycle color combiner. Zelda use 2 cycles. SSB also have a very specific Z management. Leve

One reason for the gap in those specific titles is FZX and SSB use 1 cycle color combiner. Zelda use 2 cycles. SSB also have a very specific Z management. Levels are drawn without Z buffer, from bottom to front, then the character section (1 meter width) is drawn with Z buffer enabled, and the rest of the from level is drawn without Z buffer, once again from bottom to front. I never inspected FZX but I suspect its Z management is managed is a similar way.