Edit 2025-03-20: Fixed oversight with thunder and sunny day:
- Thunder now has 50% accuracy during sunny weather: https://bulbapedia.bulbagarden.net/wiki/Thunder_(move)#Generation_II_to_V
- Pokemon cannot get frozen while the weather is sunny: https://bulbapedia.bulbagarden.net/wiki/Freeze_(status_condition)#Generation_II
Also I just changed the label image to be a picture of a Pokedex. There is not enough space left in the cartridge to actually include a Pokedex in it though.