[Puzzle] Extreme Anime Music Quizes! 4 quizes, 4 rewards :) Sollutions added! :)

EDIT: ALL ANSWERS ARE TITLES OF ANIME, NOT TITLE OF OP/ED!

OK, so I got a little bit bored with simple image quizes for now, so here's something different :) (Don't worry, image quizes will come back soon enough ;P)

A while ago I was doing Extreme Anime Music Contest at one of Polish Anime Conventions, and I have some material to spare ;P So here you go! 4 different Puzzles, 4 different rewards!

But be wary - this ones are pretty hard and your ears will bleed ;P

Hints will come with time - post what you struggle with the most ;P

Ok, so time for actual puzzles!

Level 1. Difficulty Easy. Covers Part 1. Game to win: Velvet Assasin. click me!

Level 2. Difficulty Easy. Covers Part 2. Game to win: Swords and Soldiers HD. click me!

Level 3. Difficulty Hard. Songs with Effects. Game to win: Fantasy Wars. click me!

Level 4. Difficulty Hard. Songs Backwards. Game to win: Men of War. click me!

Time limit: You have whole weekend ;P It will end on Sunday/Monday midnight CET.

ok, here coms first set of hints:

Level 1 Q1 - it has 6 main characters

Level 2 Q1 - it has a lot to do with japan history and mitology

Level 3 Q1 - it's a cyberpunk series

Level 4 Q1 - it has something to do with britain

Level 1 Q2 - what are you sitting in front of right now?

Level 2 Q2 - are you downloading music from the internet?

Level 3 Q2 - where's your god now?

Level 4 Q2 - it's albosk lie a mathemathics...

Level 1 Q3 - only the most popular title ever? doh! ;P

Level 2 Q3 - south from russia? ;P

Level 3 Q3 - it's been in my previous quiz :)

Level 4 Q3 - kids going MAAAAAD! ]:->

Level 1 Q4 - this one was in my previous quiz as well ;P

Level 2 Q4 - According to author, this title means absolutely nothing ;P

Level 3 Q4 - do you like headbanging?

Level 4 Q4 - this one is neither OP nor ED :)

Level 1 Q5 - in anime this song is in Latin.

Level 2 Q5 - Where is your GOD now?

Level 3 Q5 - main character is masochist (somewhat at least...)

Level 4 Q5 - The song not only sound like tyhat - it IS in fact hip hop...