Red Guy: (after being beat up by Chicken) That wasn't so bad.
Superhero: Hey, what happened to our costumes? Someone's going to pay for this! (Superheroes beat up Red Guy.)Red Guy: I take that back. This is real bad.
Cow: Oh, Mom and Dad! I missed you both so much these long months of being marooned.
Dad: Sweetheart, we've only been gone half an hour for Chicken's parent-teacher conference.
Red Guy placed lime-green-colored crystals on top of himself and asked for Cow's help.
The lime-green-colored crystals refer to Kryptonite, Superman's main weakness.
"Alive!" (title of the episode) is a parody of the 1993 film Alive about a rugby team who got stranded in the Andes after a plane crash. The survivors had to eat the flesh of the dead passengers.