On that subject, it'd be nice if the bubble unlocked the teleporter as soon as you reached the camp, in case I want to try the challenge room, so I don't have to worry about losing the bubble. (I don't actually know if you can lose the bubble like that; I didn't try it.)
Great point. Teleporters are definitely one of the less-polished pieces of the alpha right now (you definitely won't be carrying around a programmer-art green circle in the end haha). Currently you activate a teleporter by bringing the bubble close to the pillar with the chunk of land on top of it. This isn't super clear, so I think you're right that until the art is more polished it'd be good to trigger as soon as you enter a camp.
Maybe it'd be a good idea to get a free, automatic use of a seed when you acquire it, just so players can see what they do?
We've been struggling with this problem for a while -- a free automatic use is a great idea. An example of something we've tried in the past included having pre-planted versions of the seeds in the room. This ended up making the room too dangerous in a lot of cases and most players started skipping them because the risk didn't feel worth it. Think this is definitely worth exploring more.
I found myself wanting to see a gallery of the seeds I've gotten at least once. I think that would provide a nice sense of meta-progression and accomplishment.
Totally agree! :D