Anime Quiz:Opening & Endings II?

Seems that this topic pique my interest. 1pt for song name and 1pt for anime origin.

1. Two girls meets in the rain in front of an old bus stop. Seems like a tear-jerking moment, but actually they're fighthing. Then, the bus stop blows up.

2. An angel playing piano.

3. A lot of bamboo shoot quickly grows around a guy

4. There's a cake shaped in girl's underwear, and poured honey, making it seems like it's being peed.

5. A girl riding a bicycle, another girl do the same while wearing animal costumes, a lady is running, and another girl running with astronout suit.

6. It's introduction of characters, but almost all of them has a very same doll at their hands.

7. Several girls dancing in front of school wearing purple cheerleader uniform.

8. Two girls chasing for a train. One of them stop at the train's door, watching a butterfly flying out from the train.

9. There's a girl in a forest wearing a fox mask. After that, another girl walking through breaking glass. Her hands stained with blood.

10. A guy fall in a hot spring with 5 girls in it. One girl bash him with a sword, one of them kicked him, one of them punch him, and another one runs away.

Awaiting for answers!!!!