you cannot convince me that if you showed someone pac-man in his classic pizza missing a slice shape, they wouldn't recognize him. It's Impossible.
Pac-Man along with Mario, Sonic and Pikachu are probably the most recognizable characters in video game history. show some random person on the street a picture of them, they'll immediately recognize them.
Would you say the same if I rounded up my 7 nieces/nephews who are all younger than 8 years old and asked them?
Out of the top of your head without searching for it, which promotional art has Pac-Man been in in the past 10 years? In which medias has he been mentioned (I’ll give you one, Pixel)? What merchandise is being sold about him? Which books is he appearing?
Like to be 100% honest, I am a video game developer and I live video games every single day and I haven’t seen Pac-Man anywhere but Smash, Pixels and Ghostly Adventures in the past decade. I know he has had more games and I am sure he has some merchandise and promotions out there, but the fact is I don’t see it anywhere and I don’t even know what they are. If I didn’t know who Pac-Man was already, I wouldn’t learn about him in today’s world (at least not directly. At some point, being a gamer, I would learn about video game history which contains Pac-Man). I mean, I see a Mario related story, plushie, advertisement or media connection at the very least weekly.
In my flawed (because it’s mostly just my own experience, no real data to back it up) and uninformed opinion saying Pac-Man is the most recognizable video game figure is like saying George Washington is the most recognizable figure ever. Sure Americans learn about him in school, sure other countries teach him too and he’s discussed and mentioned in many different topics and most people who were educated will have some sense of who he is, but can you compare him to Iron Man in today’s world (I won’t say Mickey or Mario because Iron Man is a more “realistic” character)?
I would say Pac-Man is incredibly recognizable amongst a gamer-centric group. But Mario and Pikachu go way beyond “gamer centric”. A lot of people who have never touched video games can recognize Pikachu and Mario, which is what I sort of doubt about Pac-Man, at least world wide (In my native country for example, arcades were never a thing. Which means it wasn’t a topic of discussion amongst a generation during the 80s).