Ludo was brought to support
Labyrinth's Royal Charity premiere at the
London Film Festival on 1 December 1986, with
Charles, Prince of Wales and
Diana, Princess of Wales in attendance. Princess Diana's picture with Ludo appeared in newspapers across the United Kingdom and an article that appeared in
The Sun quoted her as remarking "isn't he wonderful!" upon being introduced to the character. Ludo received a generally positive response from entertainment critics, who enjoyed his sweet, gentle nature and relationship with Sarah. "Ludo is a big lug of a monster; he's as slow mentally as he is physically, but he's as lovable as can be," wrote David Connelly in the
Shreveport Journal. Amy Ratcliffe of
Nerdist wrote that
Labyrinth is "full of lovable characters, but maybe none more so than Ludo." Describing Ludo as "8-foot-tall ...
orangutan-furred and, of course, marshmallow-sweet and soft inside", Sheila Benson of
The Los Angeles Times considered him to be the most original character among Sarah's companions. ""Friend?" asks Ludo, who sounds in dire need of one. You'll want to hug the beast," penned Odie Henderson in
Slant, naming Ludo as his favourite character in the film.
The Mary Sue's Sara Godwin called Sarah's rescue of Ludo and his declaration of her as his friend "one of the damn sweetest scenes in a movie ever." Describing him as "an eight-foot ball of slow-moving fur",
Associated Press writer Bob Thomas considered Ludo to be the film's most endearing creature character. Similarly, Joseph Gelmis of
Newsday called the "sweetly goofy Ludo" one of the "best things about
Labyrinth".
Metro ranked Ludo at second place on its list of "
Labyrinth's best creatures", reasoning that "he’s everything you'd want in a friend" and unlike Hoggle, who betrays Sarah, "the lovable Ludo is Sarah’s big fluffy protector from the very start." Expressing that she loved Ludo "more than pretty much anything ever", Sarah Monette of
Uncanny Magazine wrote that he "absolutely hits all the buttons of anyone who was a lonely, bullied child." the character
Chewbacca from
Star Wars, as well as Muppets such as
Thog,
Sweetums ''
Time's''
Richard Corliss described Ludo as "an orange-haired hybrid of a buffalo and a gorilla, who walks like
Charles Laughton's
Hunchback of Notre Dame and talks like
Grover on
Sesame Street." Ludo's puppetry received praise, with Witney Seibold of
Slash Film writing that Mueck "g[a]ve Ludo's voice and body a believable heft. Indeed, Ludo may be the best puppet in the film." Kevin Lally of the
Courier News praised
Labyrinth's puppet heroes as "technical marvels" with expressive faces and natural movements, but felt however that Ludo is one-dimensional as an "overgrown teddy bear." In
The New Zealand Herald, Daniel Rutledge wrote that the film's puppet characters, particularly Ludo and Hoggle, are a big part of why
Labyrinth "is so beloved", arguing that their being "physical beings moving about in a very tactile world makes them incomparably more real and lovable than
CGI creations in a CGI world." ==Other appearances==