Just checked and the other version should work. Which browser are you using?
Jup. It was on my end.
It worked perfectly fine now.
What a lovely game! I'm glad I checked again!
As someone using a german keyboard please never use X and Z hahaha.
Z and Y is switched on a lot of keyboard designs so games using for example ctrl,alt, x, z are basically impossible to play with one hand.
It didn't hurt your gameplay just a little fun fact :)