R12 contains the address of your score. In this case, that is address 0 - the start of the data segment.
The score register is yellow, and the corresponding memory region it points to (the actual bytes of your score) are also yellow.
The score register is yellow, and the corresponding memory region it points to (the actual bytes of your score) are also yellow.
If you'd like to do a video tutorial how to play this well that could be a great resource to learn assembly intuitively.