First Pokemon Crystal playthrough part 7 Time for Red to destroy me

Generation 2 is the generation I feel the most nostalgia for, but I haven't played it in forever because the batteries in my cartridges were dead. I had Gold as a kid. I bought Crystal from a friend at some point, but when I wanted to do my own playthrough the battery had died. I've never actually played through this game. Which also means I've never done the gen 2 battle tower which is something that I want to do.