Here. "Hey mistah, you dlop some" is hardly a dignified line for our boy robot. But he turns into a giant robot and makes up for that.
Then the group keeps going, Astro disappears for a while, then shows up for a big battle scene that spreads two pages.
Page one (only his fist) and page two (here we go!)
Then he's gone again. In the end, the guy loses all the comics he's gotten in the cartoon dimension, but suddenly one comes in the mail with all the toons, Astro included.
Yes, it's weird.

BTW, this comic came out in 1988, around the time that the NOW! Comics edition was coming out.