Doubling from 2 to 4 to 8 to 16 and on to 2048 is already an evolution chain. So I swapped the digits for babies, starting at the Mystery Egg and growing all the way to a dragon. These babies turn up in our other games too. Where the idea came from is in
the dev log.
Easy mode started as a bug. The rule in 2048 is that no tile appears if the board did not move, but my code got it wrong at first and dropped a tile anyway. I did not notice. After playing it for a while I found you could just keep swiping, which was unexpectedly relaxing, so I kept it as a mode. Standard follows the original rule, Easy drops a tile on every swipe. The story is in
another post.