This is optional, of course, but I wonder if trying a different browser might help with the sprite problem. If you do get a chance to try, please let me know and maybe I can try to troubleshoot what might be going on.
I managed to play the game on another computer and i didn't have any issues! The game was very fun to play! I was originally using the brave browser which is a fork of chrome on a mac and on the other computer i was just on chrome on a chromebook .
Glad you got a chance to play! I'll keep my eye out for any other graphical issues from Brave users. One thing I can say is that the serpent uses a CanvasGroup for rendering, with an outline shader applied, so that combo of CG + shader might be responsible for some edge cases.