I like your game and found the puzzles very interesting. I would have made the first level a bit shorter to have players learn the core mechanic much faster. Also I thikn subsequent copies fater death should appear faster, although that just might be WebGL being slow.
All in all I found it a solid game!
Thanks for playing and commenting! I'm glad you enjoyed the puzzles.
The first level should have probably been shorter to better work as a tutorial, you are right. About the copies: the characters should spawn with 1 second intervals. If it was slower than that, then it might have been just WebGL being too slow.
