How often can the coral bridge be rebuilt?

Question

After building the coral bridge, how often can it be rebuilt to have access to the bosses? (Jaul, Tanjis and Obujos).

Answer 1

After building the stairs leading to stage 3 of the world change, the bosses become accessible for 5 server saves. On the last day of stage 3, if the server has accumulated at least 200 points, the world change will return to stage 2, where it will be possible to mine the corals again to rebuild the stairs leading to stage 3. Otherwise, the world change will return to stage 1, and it will be necessary to accumulate 200 points to advance to stage 2 again. And so the cycle repeats itself.

Note: The stages of world change only change after the server save.