1. Hopefully, yes.
2. We don't intent to post any spoilers ourselves.
3. The "sticky slug egg" can be found deep in the slug nest.
4. The pet is intended to be a cosmetic, non-combat follower, just for fun.
5. The red merchant's items are mostly jokes, but some of them can be taken to your room at the inn and used in the 'personal pocket dimension'.
6. I don't know what "bundles" are.