This was posted by Janne Kivilahti about that level:
Cave of the Bees
It seems that this level has been specially hard, so I'll give you some tips.
Jump in the third well that you see. There is a megaphone in it. The first two bees can be lured into the water pool near the start which will kill them. It will be more easy to get the megaphone if you do this. However, the megaphone isn't a very good weapon against the bees, because it's so slow to "reload". If you jump down to the last well just before the cave's entrance you'll find a secret cave. Crossing the flames on the right might be a bit tricky, but if you manage to do it, you'll find a special new doodle attack.
Also, on top of the last well there is a special Easter egg that will give you a special egg attack. There is a place in the cave where there's a gift package floating in the air. You can jump through the wall on the left. There is a small ledge from where you can jump to get to the top of the well.
There is also a green switch hidden behind a wall right after the elevator block going up and down. You'll have to duck to be able to get through the wall. You can also find a feather there.
And about the flower, in the game manual is written: "You can also activate switches by dropping something (heavy enough) on them. It also works, if you pile enough light weight objects on a switch. ".
...I am already playing episode 2, level 11, and yet I haven't seen anything lighter than the flowers!! I suppose that they can hold switches down, BUT I HAVEN'T YET FOUND OUT HOW!
And it really would be useful for the level I'm in...
Good luck! And if you ever find out about the flowers, please let me know!