Here's why:
* Different hardware: The SNES and N64 use entirely different hardware architectures. They have different processors, memory, and cartridge formats.
* Incompatible cartridges: SNES cartridges are physically and electronically incompatible with the N64. They won't fit in the N64 slot, and even if they did, the N64 wouldn't be able to read the data on them.
To play SNES games, you need a SNES console or a compatible emulator running on a computer.