Level E

Ep 7 of Gintama has what I think may be a strong reference to level E manga. An Alien prince loses his pet and team Gintoki is charged with finding it; it has this funny scene where the characters are arguing about the Prince being a baka. Stylistically and in terms of their approach, they're quite different. But on a superficial level they're quite similar in that they both use parody as a secondary element to their humor, feature aliens among humans and often involve plot build-ups leading to crazy antics and/or bizarre situational comedy.  

Aliens assimilating into human society, shounen comedy, douchebags, violent government officials and alien princes known as 'baka-ouji.' Wouldn't be surprised if Gintama was inspired by Level E, since it was serialized in Shounen Jump some 8 years prior to Gintama's debut in the same magazine. Level E pays more attention to the aliens, and Gintama to the shounen comedy/adventure. Gintama also has more girls. 

1. They are both random. 2. They are both hella funny. 3. They both have aliens. 4. They are both epic. 5. They will make your day. 

Level E is a fitting alternative to Gintama . in fact it would be proper to say that gintama successfully captured the spirit of Level E . alien invaded japan, idiotic and funny side characters , super troll moments and nearly unpredictable twists , unique settings connecting totally random events and a "baka ouji " to rule them all !! ... damn...togashi should have continued level E !  

Both have an arc that parodies RPGs, although the cause of the setting is different, both then proceed to try to funnily get out of the situation. 

I like to believe that when Gorilla was a young chimp, that still suckled on his momma's tweet, he read Togashi's Level E. Both comedies are set in an alien invaded Japan (although the humans don't know about the aliens in Level E). But the only real reason I recommend these anime in a pair is that they were made to troll you. 

This is the only anime I found to match Gintama's hilarity and absolute absurdity like Level E. You can never guess what might happen yet you can expect anything to happen. A great mini sample of Gintama's absurd spirit. 

if you like anime that prank viewers easily, an anime with simple jokes, an anime with sci-fi stuff, Level E and Gintama will be like that. There are some similar characters e.g right man, a very strong character but stupid and never listen to others. 

Both animes have the same humor level. They are both all over the place with their stories and have something to do with aliens or weird different species. The are both unique in the sense of their stories, they make fun of odd things and have a lot of similarities. 

This boths series have a sense of humor, very surealistic, show things that could never happend, but in some way they make a very good plot around it 

Ah, those people! They're just impossible! So weird! It's like... like they're aliens or something! Or aren't they...? Level E with its bona fide visitors from space who pretend to be regular men and women, or Arakawa Under the Bridge with regular men and women who... sheesh, they aren't regular at all! And both worlds will explore just how multiple kinds of humans - or aliens - can mingle together. Regular and irregular. Socially adept and absolutely not. In the city or under a bridge. 

Patalliro! and Level E's protagonists feel basically the same: both shows tell a story of intelligent princes/kings who love pulling pranks on others and use their genius to annoy everyone around, especially their closest guardian. 

Very creative sci-fi comedies including satire of both anime and other media. Both have "feels" moments despite mostly comedic/adventure nature. Characters are likable but also have noticeable flaws. 

Tbh, I find these two series quite similar involving absurd comedy and the "alien" theme. Both series revolves around a main protagonist whose life is changed by the arrival of extraterrestrial beings. Both series are decent especially in the comedy department that has supernatural themes. Both series' main protagonist also has similar personalities. 

The Main character is weird and unexpected,the events are just hailrious both can give you a feeling of joy when you watch them  

I feel the same about these two the humor offered in both is the same. They are both based on alien creatures and the story picks up and takes off from there.  

While Level E is a scifi-comedy that focuses on aliens, Occult Academy is a scifi-comedy that focuses on mythical creatures. They are very similar in that sense. Both are funny and have captivating enough stories to keep you entertained.