Hey, SerenePixels! I wholeheartedly express my gratitude: thank you so much!
I'm still working on the game again in order to release a new version, improving the mechanics, motion and difficulty. Now that I look back, I feel bad about how hard this jam version turned out to be. SORRY everyone, for that! Hahaha! But, for a while, it is what it is. Hopefully, the update will provide a more kind experience to players and attract new ones!
Edit: oh, yes. I don't think I'll focus on mobile. At least, not for now because I have almost to zero experience releasing a mobile game. But who knows!
Again, thanks for playing and leaving your feedback!