Ass Pull: The Pointy Heads, especially when Apex states that they have all the yellow Pac Worlders (except for Pac, of course). When the show first began, it was hinted that Betrayus and his army were responsible for killing off the yellow Pac Worlders, then Pacinator states someone hired him to eliminate the yellow Pac Worlders, though Apex could have been indirectly claiming responsibility for hiring him.
The Japanese opening, which is already being considered better than the English opening in every conceivable way, from fitting the series better to being way more catchy (in a non-obnoxious way). It helps especially that it's by frickin' Hyadain!
Cult Classic: It wasn't really a popular show to begin with, but it still managed to obtain fans nonetheless who enjoy the characters, Saturday morning cartoon + Slice of Life anime pastiche humor and bizarrely dark lore.
Les Yay: Cylindria's fangirling over Spheria in "Pac-Pong Fever" was a little over the top.
Memetic Mutation: In-universe; Pac-Man bemoans that he's become a meme when images of his zit-laden self, made worse by the Balloon Berry, is photographed all over town. It ended up becoming a meme outside the show as well (for various reasons).
"Is Zit You Or Is Zit Me" features Pac-Man's grotesque pimples, that only get worse as the episode goes on. (Not to mention when he lets out a horrendous fart on poor Spiral and Cylindria when they attempt to bring him down.)
There's also Pac-Man's tendency to eat anything (one of many, many, MANY Shout Outs to the classic games). There are moments where he eats stuff like flowers and pet kibblenote Another shout out, since Jr. Pac-Man (from his game) ate stuff such as bicycles, kites, and drums, etc., but then you have moments where he eats eyeballsnote Even though he couldn't in previous incarnations, slime, and regurgitated food. And then there's the time he eats the Ghosteroid...rather messily. The Ghost Gang, even Pinky, are appropriately disgusted at the sight.
One notable critic was Masahiro Sakurai - He stated that if Namco forced him to use this design for Pac-Man's character in Super Smash Bros., he probably would've been cut entirely.
Though they are slightly altered from the 2009 Party designs; Pac-Man was given more visible polygon-modeled anime-like details like eyelids and fingers. Their personalities are also considerably different.
Anti-Climax Boss: The final boss of the first game, as all you have to do to beat him is just stand on platforms so his laser will reflect off them and hit him.
Author's Saving Throw: After the soundtrack for the first game was criticized for mostly reusing tracks from Pac-Man Championship Edition DX and Pac-Man Party in addition to reusing tracks from the TV series, some original orchestral tracks were composed for the second game.
The Problem with Licensed Games: While not bad, theyve generally gotten "ok" scores. Played straight with the 3DS version of the original, which is a mediocre sidescroller.
Averted with Pac-Man Dash! for the iOS and Android, though. It's pretty fun to play, especially for a free (with optional purchasable upgrades) mobile game.
It's the Same, So It Sucks: A common complaint among critics was that the second game didnt really change anything from the first, with some even saying it felt more like an expansion pack than a sequel.