>>714957564
>beginning of the game
Thats because they were either unprepared for this (the first few) or ordered by Suzu (most of them in the courtyard) so they couldn't resist, he just gently pulls the guns out of their hands.
>characters
The pistol guy negates Kaoru's vaccum bullets with sheer volume besides if you could just pull out a handgun and kill them there would be no point to even forming squads out of them. The sword girl was superhuman both in speed and strength.
>grenades
He might aswell throw one - his power isn't particularly fast and they can see a grenade flying towards them
>window
he touched the windowsill when he jumped, how else would he be grabbing it?
>hospital
Duh, if he's in a small room full of sharp objects he can throw them and injure people, it's still not very useful against non-civilians.