[chms]

Very nice, but please don't rely on keys like 'y' being on a certain position on the keyboard – on my German keyboard, for example, it's where the US's 'z' is. Other keyboard layouts are even more different.

If you can't access the physical layout of your keyboard (and using javascript, I'm not sure you can), using the arrow keys for all navigational things is really the best option.

[seszett]

This one should be safe for German keyboards, it only uses A and Z as far as I see.

For French keyboards, the common WASD layout is completely broken, but this game manages to stay quite usable since it's just two keys.

[wagnerandrade]

hmmm... interesting. Thanks for this feedback.