I didn't read the past messages to not get spoiled.
1. is there a way to know how many collectibles you have/remaining to find per world?
in all past mario's and yoshi's games, there have always been a way to know if you forgot a coin, star, wool, flower and and start the level again to get them.
2. I'm at world 2, and would like to find everything before advancing to world 3.
I think I'm missing only 1 moon (based on parrot's hint), or none (based on captain toad)
I think the parrot only gives you hint to what's possible to find, as ittold me I found everything in world 1 even if I saw a moon on a floating island.
So, I think I miss one, and toad will not help me find it.
3. I'm missing 3 coins, I really don't know where it is as I've done all the map few times.
there's probably a hidden area I missed, but I don't know how to know which one I missed without looking at a guide and check them one by one.
So, my questions are :
- is the parrot's hint about the moon on the floating island?
- are there any triangle coins in the floating island on second world?
just to know if I should stop walking around for nothing and go to next world, or if there's a way to get all coins right now?
I know I could just advance in the story and come back later, but in all games I like doing everything possible in order before advancing.
1. You can press - to see how many moons / coins you require
2. I use video guides to find missing moons and coins, I generally find the ones by Underbuffed to be the easiest ones to follow on YouTube
3. The same as 2
Sorry I am not more helpful, maybe one of the better people will be along later... I am happy to link the guides for you if needed ?