Keyboard is too sensitive in web version. It's hard to press arrows briefly enough to go only one cell instead of two or even more. This ruins the game since single misstep can cost you game. :( I'm on windows and my keyboard repeat delay is set to shortest, and repeat rate to fastest. But it does not cause me problems in other games.
I kinda had the same problem with the controls being too sensitive, but i really like the concept :)
Yeah, the game is awesome. Maybe it's a browser version problem. I'll try standalone version.
if there was a larger version of the game, there should be a function where you can hold shift or something and it makes it so that you only move one tile from holding.