RAT TRAP was going to be a full commercial release by Audiogenic, then Acclaim got the licence for KRUSTY'S SUPER FUN HOUSE and basically bought RAT TRAP from Audiogenic, changed the character, changed the name: new game.
Manual (Only English and French included) [Source: Retro Commodore]
Enter “ZACHARY” for the password and you will be given infinite lives. You will also be able to go anywhere.
(LEVEL CODES)
Level 2-“NELSON” Level 3-“PATTIE” Level 4—“MRPLOW”
Level 5-“MAGGIE”