Thanks for playing my game. I can totally feel my story script problem, and lack of play test before submiting.
I understand that the asset and gameplay reusing may not impress some people. If you lower the rating for it, it's understandable. The protagonist is remaked (both game model and story model). Mascot is completely new. 2 new enemy models. New scene. New soundtracks. Enemy AI is all new and the battle system is highly modified to integrate the rhythm system. Maybe i saved a lot of design and research time, but for workload i would say it's 60%. If i create a game from scratch, the percentage may still be the same, as i will rely more on free assets online.
Recently, i adapt an iterative stratgey. In each game jam, instead of experimenting brand new game idea, i experiment small game element. And instead of creating assets for new setting, i create assets for same setting. Each game jam gives me inspiration and feedback. So, someday, I may have a polished game concept and a big pool of assets that i can make it to something bigger. I think it's acceptable for a prizeless casual game jam like MGGJ? or maybe not.? That's also why i honestly shows all my information and let people judge.