Getting the Three Treasures

How do I get past the monster on the first screen?
How do I avoid the zombie on the first screen?
How do I get past the yellow spider in the middle?
What should I do about the red spider on the left?
Why can't I go on to the next screen once I have the red bottle?
How do I get past the large red spider?
How do I get the flower on the scarecrow screen?
What do I do once the wizard comes on the screen?

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