I have a Intellivison II with 23 game's and the intellivoice voice synthesis module.3 of the game's are missing the over lay's. tested and working.
list of game's-
Armor battle, Atlantis, Dracula
Space Armada, Pac-man
Nfl Football, B-17 bomber,
Frogger, Sub hunt, Star strike
Las Vegas Poker & Blackjack,
Soccer, Tennis, Royal dealer
Bomb Squad, Horse racing
Sea Battle, SKiing, Shark! Shark!
Microsurgeon
Advanced Dungeons & Dragons