Guess the anime with bad descriptions

Brothers lose (parts of) their bodies while having fun drawing circles

Little kid goes on a deadly adventure to find his dad with as only weapon a fishing rod and uses steroids to defeat one of his opponents

Kid sequesters animals in small balls and make them fight

Guy travels time by using his phone and melting bananas in a microwave

Students who have bad grades have to kill a yellow octopus in order to save the world

Bunch of people running with their hands behind their back

Guy got transferred in an other world whithout any legit explanation while he was at the grocery store. Oh yeah, and he dies multiple times in the anime

Kid gets angry because his mom was eaten and wants to kill all of them now

Guy dies and gets reincarnated in a slime

Main character can no longer masturbate in peace with his right hand

Little kids live in a lovely 'farm'

Just some random guy who plays hero for fun

Annoying kid who has no magic and screams all the time

Pink haired psychopath girl: "Yuki! Yuki! Yuki!"

Guy went on a date, became a monster, his hair turned white and only drinks coffee

Siblings become the king of an other world by winning games

Guy accepts to swallow a pill a random man is offering him on the street

Students die one by one because of a game where the rules are explaned on their phone

The first episode was a gore hentai involving goblins

Student has fun writing names in a notebook he found

Student becomes overpowered every time he gets bullied

It is like hunger games but with bombs

Grandfather gets an upgrade and becomes a badass fighting machine

Girl gets horny at school while gambling

When people die they get to play one last game