Gintama.: Porori-hen
Consists of episodes animated from unused manga chapters, before returning to the Silver Soul Arc on January 8, 2018. Porori is an Onomatopoeia for something (mainly water) falling.
Episode 1 - You Guys!! Do You Even Have a Gintama? (Part 1)
Episode 2 - You Guys!! Do You Even Have a Gintama? (Part 2)
Episode 3 - Nobody with Naturally Wavy Hair Can Be That Bad
Episode 4 - Watch Out! Weekly Shonen Jump Sometimes Comes Out on Saturdays!
Episode 5 - Make Friends You Can Call by Their Nicknames, Even When You're an Old Fart
Episode 6 - Keep Your Promise Even If It Kills You
Episode 7 - Responsible Owners Should Clean Up After Their Pets
Episode 8 - There Is Butt a Fine Line Between Persistence and Stubbornness
Episode 9 - Fighting Should Be Done with Fists
Episode 10 - Eat Something Sour When You’re Tired
Episode 11 - Look, Overly Sticky Sweet Dumplings Are Not Real Dumplings, You Idiot!
Episode 12 - People Who Make Good First Impressions Usually Suck
Episode 13 - If You’re Going to Cosplay, Go All Out
Episode 14 - You Only Gotta Wash Under Your Armpits - Just the Armpits
Episode 15 - Pets Resemble Their Owners
Episode 16 - If You Stop and Think About It, Your Life’s a Lot Longer as an Old Guy Than a Kid! Whoa, Scary!!
Episode 17 - Sons Only Take After Their Father’s Negative Attributes
Episode 18 - Oh, Yeah! Our Crib Is Number One!
Episode 19 - Why’s the Sea So Salty? Because You City Folk Pee Whenever You Go Swimming!
Episode 20 - Watch Out for Conveyer Belts!
Episode 21 - If You Go to Sleep With the Fan On, You’ll Get a Stomachache, So Be Careful
Episode 22 - Marriage Is Prolonging an Illusion for Your Whole Life
Episode 23 - When You’re in a Fix, Keep on Laughing, Laughing…
Episode 24 - Cute Faces Are Always Hiding Something
Episode 25 - A Shared Soup Pot Is a Microcosm of Life
Episode 26 - Don’t Be Shy – Just Raise Your Hand and Say It
Episode 27 - Some Things Can’t Be Cut with a Sword
Episode 28 - Good Things Never Come in Twos (but bad things do)
Episode 29 - Part 1: Don’t Panic – There’s a Return Policy! / Part 2: I Told You to Pay Attention to the News!
Episode 30 - Even Teen Idols Act Like You Guys
Episode 31 - You Always Remember the Things that Matter the Least
Episode 32 - Life Moves on Like a Conveyor Belt
Episode 33 - Mistaking Someone’s Name is Rude!
Episode 34 - Love Doesn’t Require a Manual
Episode 35 - Love Doesn’t Require a Manual (Continued) / You Can't Judge a Person by His Appearance, Either
Episode 36 - People with Dark Pasts Can't Shut Up
Episode 37 - People Who Say that Santa Doesn’t Really Exist Actually Want to Believe in Him / Prayer Won't Make Your Worldly Desires Go Away! Control Yourself
Episode 38 - Only Children Play in the Snow
Episode 39 - Ramen Shops with Long Menus Never Do Well
Episode 40 - Give a Thought to Planned Pregnancy
Episode 41 - You Can't Judge a Movie by Its Title
Episode 42 - You Know What Happens if You Pee on a Worm
Episode 43 - Make Characters So Anybody Can Tell Who They Are by Just Their Silhouettes
Episode 44 - Mom’s Busy, Too, So Quit Complaining About What’s for Dinner
Episode 45 - Walk Your Dog at an Appropriate Speed
Episode 46 - Adults Only. We Wouldn’t Want Anyone Immature in Here
Episode 47 - Do Cherries Come from Cherry Trees?
Episode 48 - The More You're Alike, the More You Fight
Episode 49 - A Life Without Gambling is like Sushi Without Wasabi