Grind got you down? Just start a new game, get a save code, and add 2,000,000; 2,000,128; and 128 to the last three numbers respectively, keeping the same word on the end.
I know timing can be a great element in puzzle games, but I'm playing on a laptop trackpad and it's nearly impossible to hit everything quickly enough. The puzzle makes sense, but execution is impossible. It absolutely kills the game for me.
One big thing I'd love is a way to send heat in a specific direction. At the higher tiers there's just way too much heat to use fans anymore, and destroying ice packs is repetitive, it'd be nice to be able to deliberately concentrate the heat (and then obviously destroy cooling packs or other devices).
A way to see how much heat is travelling in what directions would be nice as well, but that might be harder to make.
An option to spawn another enemy immediately if Energy/Life is equal to or greater than a settable number. An auto-spawn setting like the auto-special settings.
Worked great until I got a few bubbles out and then it would freeze up rendering at one frame every 30+ seconds until everything was dead; slowly took longer and then chrome reported that flash had crashed.
Issues getting back to fullscreen after the name as has been noted (there's a button on my phone just below the url bar to the left for fullscreen), then everything is very small and hard to press, and then finally it told me to use the wasd keys or arrow keys to scroll. I have no keyboard on this phone as do many others. This is in no way a mobile game. 1/5
Pretty easy to miss the button after a while, annoying to have to unlock the trick each time. Are the achievements supposed to be visible? or are you hoping for badges?