WASD, Arrow Keys or Tap to Move Avoid the boss' attacks. To defeat the boss, wall climb to him while he's stunned. For the cutscenes, don't do anything.
Credit to @AtomicSapper101, for providing me with the platforming tutorial. Here is the link: https://scratch.mit.edu/projects/420304011/ Provide ideas for new projects please! Also, if this is not to your taste, don't report it. Suggest how I can make it better instead.