Some of the instructions are in the game. To learn more about the game, like how to beat Reginald if he has a shield, you could just see the codes or ask me in the comments below. And report me if there are any bugs.
This project is quite complicated, but I hope you enjoyed it! I mean, it's quite hard for a quarter-intermediate Scratch coder, but I can finish it, even though it took days for me to finish.