It shouldn't have been possible for the main pups to communicate with VLAD, as it was a computer program. It was created by humans, and in the series, humans cannot speak with animals.
When Spot says, "An Ice Asteroid? Please!" the giant snowball is clearly seen in the background but it's not moving. After she finishes her line, it starts moving!
While Cadpig is being told about animals who are better psychics than her, her blue collar turns red.
Lucky: Hey guys, don't panic! Lighten up!
Cadpig: Lighten up? We're already weightless!
VLAD: VLAD had to fool his furry and feather friends.
Lucky: Why? Why did VLAD have to?
VLAD: Skinny evil woman wanted to change VLAD. Went to turn VLAD into flight fat farm. VLAD's mission to violate countries, not melt off pounds fast.
Rolly: But why dognap us?
VLAD: VLAD wanted little comrades to help fulfill VLAD's destiny: to seek and destroy all orbiting traffic and become czar of outer space!
Cadpig: Of course.
Spot: Should have guessed.
Rolly: What else?
Cadpig: We all need to express our dark side, VLAD, but give it a rest.
Cadpig: Exercise equipment? Why would anyone want that on a spaceship?
Spot: Why would anyone eat processed cheese food?
Spot: I'm in the lead! I'm in the lead! (falls in a puddle of mud) I'm in the mud.
Cadpig: It was just nice to have everyone look up to me for a while. Take my advice. Give me a feeling of importance.
Lucky: Well, it gave me chills and a fever and frostbite on my tail.
Cadpig: How long do you suppose Captain Flea Dip will be conquering space today?
Spot: Probably just his usual romp to the Omega Quadron and back.
The episode 'Prophet and Loss' is referred to in 'Spot's Fairy Godchicken'.