Spinning off

This last update should make it a little easier to deal with replay keys:

The first improvement is that, when you paste a key, the "Start" button shows you what you're up against, and you can click on "Reset" to return to a normal, non-replay match

The second improvement is even cooler: you can share directly a URL that contains the replay key, which means your opponent can simply open the page and compete against you (and vice versa, of course).
Unfortunately, it's not currently unavailable on Itch.io because they don't seem interested in letting HTML5 games access GET parameters from the IFRAME where the game runs (I hope this will change someday but not exactly holding my breath since the relevant issue is open since 2016: https://github.com/itchio/itch.io/issues/514).
So, for the moment, it's deployed here instead https://pgcd.github.io/wordrush/ - which makes me unhappy because I really wanted everything to be on itch.io but, alas, it is what it is.