Hello! Thank you for the wonderful feedback you have given us! This is our very first game we've made as a students, and those feedback of yours are really helpful. We think that you might want to try it on a different browser or OS, like using Microsoft Edge on Windows, to fully enjoy the game... As a newbie to game development, compatibility to different devices, uniform pixel sizes, and other improvements are what we've learned from yours, so thanks a lot for the support!
(P.S.: Sorry for late reply)