I've put out another update. This one fixes two issues:

- Losing hearts or the double-jump boots when the game crashes or is closed via Alt+F4.
- Jumping so far off the screen that you don't come down anymore.

If you're interested in game design, you might be interested in a blog post I wrote about the influence of old freeware & shareware games on my work, with Omegaland as a main example.