I love the completely different main character options with multiple forms! The art and designs are fantastic, I'm guessing they're intended to become stylized like the cutscenes in the future, but I really like the current paper sketch style too! The pace of combat feels pleasantly brisk. The balance could use tuning, fusion seems a bit weak mechanically at the moment, "independent" is an amazing major perk, and stacking attack upgrades knocks out the final boss very fast. The music and sound effects are very fitting, you've set up a really nice and consistent tone! I'm very intrigued, and I hope that you'll continue development, this is a wonderful introductory chapter!