v2 update! I uploaded a new build of the game. You can follow that same link in the original post to play it.
The biggest change is that enemies now respawn in the Prairie world. My plan is to continue doing this throughout the game, but I wanted to get some opinions on how it works early on. I'm guessing this will make the game a bit harder. I would love to hear your thoughts on the difficulty, because it's a challenge to gain perspective on that aspect of the game. (When you've been working on something for a while, it's nearly impossible to view the project with fresh eyes).
Another change is that now, if you press the "v" button during normal gameplay, you can view the game's fps and version number.
There were a few other minor changes. In this version, dialogue screens appear and disappear more quickly. As per troublesum's suggestion, I'll probably add a "skip dialogue" option in the future. But for now, this small change makes reading text a little less tedious.
A quick question: has anyone made it past the Prairie levels yet? I worry that people's first impression of the game is underwhelming, and I would love to address any issues that are preventing players from progressing to the other worlds.
As always, thanks so much for playing!