Are there more than 2 endings? What are the 'dynamics' in gameplay?

[Katana DK]

I have seen the "good" ending where you do everything correctly (see the guide) and the first location becomes green and clean.
But I have also tested these scenarios:
+ you do "most things", the result that most players will get on their first playthrough, where you miss one or more things (such as the swing, and picking up box and net from water), but you do the remaining, obvious tasks.
+ you do nothing, i.e. don't help the dog, seal, bird, and so on (you monster)
and the end result seems to be the same, i.e. the same "equally bad" ending.
Are there more than 2 different end states?


Also, the game description says "your actions dynamically change both gameplay and the story". I can confirm that gameplay changes a little once you go back to the first location, as a result of the different (2?) states it can be in, but I'd hardly call that dynamic.
Did I miss something?

The only exception I've seen, which I would call dynamic, is whether or not you can play with the dog, which occurs in the first part of the game, when you are still moving to the right.