This prototype of NBA Jam is virtually identical to the final version. There are only two bytes different between the prototype and the final version of the game:
Comparing files NBA Jam (Prototype).sfc and NBA Jam (U).SFC:
I briefly played the game, and I the debugger didn't trip for these two addresses. Considering the internal checksum in the prototype is the same as the final version, I can only assume that these bytes were changed simply to break the checksum, or the chip was not burned correctly. I suppose we also cannot rule out that the dump is bad, although it seems odd that only two bytes would be bad.
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