Good news guys! I have updated the parallax code so that it can work with just the SNES. The parallax code is quite slow (even ignoring the four times faster SA-1 CPU) but yes, you don't need to use SA-1 anymore for this beautiful background.
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Now that I have the SNES code ready, I will upload the Parallax Toolkit to the
UberASM section this weekend. Once accepted, I will also submit the graphics (just without the code) to the
Graphics section.