Hi everybody,

has someone discovered the hidden lake yet an got through it? I am stuck at a position where I get to an island over some sand in the eastern part of the lake. There is a stone for time traveling but in the 2D world a black block is in my way further to the south and in the 3D world a small tree is blocking me. I ran around this area for some time now but I cannot figure out how to proceed... any hints?

Sometimes it helps if you can find a time-delayed way to attack a time-travelling stone ...

Thank you. I forgot that I have three weapons... ;-)

But this map really annoys me anyways. The guy in the city tells me that there is still a card and a star left here. No idea where. Tricky, tricky...

Where is that hint guy? Is there any special requirements for hints? I spoke to everyone. I'm still missing 4 cards and 9 stars.

(spoilers)
The hint guy is unlocked when you get the airship, he is in Aogai city right when you enter by the savepoint, you can't miss him and again he doesn't give hints until after you get the airship. Hope that helps.
(spoilers)

Yeah he doesn't seem to point to stars and cards you haven't gotten which is the way the hint guy should work.