Hidden in the game code are the programming credits which aren't
displayed anywhere else. Also hidden in the code is a
Grandpa message saying "It's a wonder Peter ever got this program
debugged" (Peter being programmer Peter Adams). This
message does not appear to be displayed in the game itself
however.
Sure you will...
Well I'll be, I guess he was right.
Get that creepy pumpkin zombie away
from me!
You won't be able to get that heart
until late in the game.
Take a knife to the back of the
head you damn zombie!