I resisted adding dedicated keys for abilities, because I liked the idea of just having 4 inputs (left, right, up, down). Since replays store frame input data, less inputs makes replays smaller, and it just felt nice and clean only needing arrow keys.

But it's just too annoying to accidentally trigger a double tap ability when moving. So now there are dedicated ability keys (defaulting to X and Z, or on controller to the X and Y buttons). There's also a dedicated Jump button saved to the input stream (spacebar or controller A button), which jumps regardless of your frame of reference (reverse or sideways gravity).

It's easy to see character specific leaderboards for map levels now, without needing to go to the full leaderboard screen.

Maybe you want to try beating every map level with every different character. It seems insane but I added an achievement for it, and tweaked a couple levels that appeared impossible with certain characters.

To quickly see which levels you've beaten with your selected character, enable "Show Selected Character Progress" in the options menu, and you'll see checkboxes on levels you've beat with that char, and X boxes on levels you can't play with that char.

For levels you've already beaten, the checkboxes won't appear instantly, as I don't want to run a huge query over all leaderboards. When you view a leaderboard with your existing win in it, it should update and show your checkmark.

I slightly increased the air movement speed for Owl, the low-energy speed for Solar, and reduced the randomness of the jump for Swarm. Old replays still work.

When it comes to existing high scores, I think buffs are much less of a problem than nerfs - I want to avoid the case where a top score can't be reached again because a character became worse. With buffs, maybe an old score can be beaten more easily now, but that's not a huge issue.