Same as grumpyCanine, I can't start the game, I can see the image with a screen and computer but nothing happens sadly. Art looks cool though!
(I tried on another browser and on my phone but nope, really can't start playing :/)
EDIT: Now that the bug preventing me from playing has been fixed, here's my updated review :
Honestly, the foundation of the game is really good! The puzzles available were great once you get comfortable with the keybinds, and I really dig this kind of gravity shifting mecanics. As was already said enough times, yes, there are bugs, some can be annoying, but looking past that you have a great game. Congratulations!