Ok, maybe that scene was a bit too specific; I'll try a more general description:

A couple of mass murderers go on a rampage across Japan, competing in both kill count and media attention with a gigantic bear-like monster doing likewise.

Wow this was somehow the longest search I've done for this thread and somehow now the answer seems so obvious.

The World Is Mine

Indeed it is. Your lead.

Crap, I didn't post for two days! Sorry guys!

_ _ _ _ _ _ _ _ - _ _ _

About a hero who lost all his hair training to become super strong him and his cybernetic apprentice.

There are alternate spellings but this one's too easy to warrant listing them.

didn't read it but
Onepunch Man?

________________
in need of romance?
uncommon, sad, sweet

Correct!

well I think it's a bit too easy coming from me but meh...
only a quote in exchange

_ _ _ _ _ _ _ / _ _ _ _ _ 7:5

"Radiating pure light...
Illuminating the world three thousand times over...
Protecting dreams, nurturing hope...
Break through the darkness with the light of wisdom!
Take all the nightmares in the world and blow them away with dazzling brilliance!
Light up the world!"

________________
in need of romance?
uncommon, sad, sweet

Yumekui Merry

________________

yep, what else...

________________
in need of romance?
uncommon, sad, sweet

_ _ _/_ _ _/_ _ _ _/_ _/_ _ _ _
time loops
there's going to be a movie

________________

good friend google says (time loop manga movie):
All You Need Is Kill

________________
in need of romance?
uncommon, sad, sweet

yup

________________

_ _ _ _ / _ _! 4:2

extremely good eyesight and memorizing skills
trying to take pictures of the main girl


again should be simple

________________
in need of romance?
uncommon, sad, sweet

Lock On!

________________

again correct

________________
in need of romance?
uncommon, sad, sweet