I arrived now by the second Boss. I found a spirit item there and I now that there are some Roller Skates hide everywhere. But no shovel.
Now I have no idea what is the best use for the spirit item.
Shovel - I think its useless here, because I have enough time for digging.
Bomb - maybe a good idea. I can maybe hit the Boss one time and it will dig 5 holes. So I must maybe not dig anymore or get too some Roller Skates then. But it will be hard to find the right place for the bomb that it hit the Boss and dig good holes.
Is Bomb stronger? Don't know it anymore if this will take more damage to Bosses.
Boomerang - maybe too a good idea. I can hit the Boss 3 times with it at the beginning. So I must only dig for 3 Bones after that.
Roller Skates - bad idea, because I can find enough in this Stage, but don't need it here, because I am near the exit and it takes to much time.
Other Items most useless I think.
So I will maybe try a bit and test many things here. Bad too, when I dig for the spirit item the Boss will fly to the right and there I can not hit him good. Maybe only with boomerang then.
Or maybe someone know a better way for this Boss.
Arrive 2. Boss
EDIT:
Done know, defeat the 2. Boss. First I use Boomerang. Then I dig for Bones. I have not the time to dig for the Roller Skates, but I am near the exit, so its no problem I think. Now I hit the Boss 3 time in a row with Bones too.
Defeat 2. Boss