I do love Cave Story! :D

Could someone explain the joke?

It's too quick, but Otto (the walking man) finds the grave of a girl, and then eats her panties. Then a killer zombie girl appears. Otto tries to launch magic missiles, but they don't work on her, and she kicks his ass.

comment #29818
...what?

comment #51410
That's about it.

Otto eats 'Curly's Panties'

his name is quote

Oh, so there is ku.