I've noticed a little bug with graphics on both Super
Mario All-Stars/Super Mario All-Stars+World ROMs. It
occurs in all versions I've tested, so I suppose it's not a
problem with the dump. (I've used NSRT to verify it...)
They can only be seen in some stages. In water-stages
there's some sort of 'dark line' which crosses the right
border of the window, but only in water-background
(screenshot attached). And there's another 'black line'
crossing the right border of the window in some linear-
stages with water below the platforms (screenshot
They can be tested on World 3 Stage 1, World 4 Stage
2 and World 4 Stage 4.
On the other hand, it seems that they aren't displayed if
you turn OFF the 'New Gfx Engine' in the Options Menu...
This is the NSRT 'loginfo':
---------------------Internal ROM Info-----------------
File: Super Mario All-Stars + Super Mario World
Name: ALL_STARS + WORLD Company: Nintendo
Header: SWC Bank: LoROM
Interleaved: No SRAM: 64 Kb
Type: Normal + Batt ROM: 20 Mb
Country: USA Video: NTSC
ROM Speed: 200ns (SlowROM) Revision: 1.0
Checksum: Good 0x60D8 CRC32: F84305B1
I'm using Win32-ZSNES v1.42 in Windows XP, but it also
happens in versions 1.41 and 1.40.