Magellan -
Awesome post and links! Of the ones you listed, only Snafu and Triple Action do I recall. Well, I recall Pitfall, but I thought the Intellivision version was only marginally better than the Atari one (which was rare), so left it off.
Looking at your link for Triple Action, it's funny how much time they spent focusing on the biplane piece. But it's true, that was easily the best of the three. Nice pickup.
I can't find
Pandemonium on the site I used, so not sure you're right about the title.
riverdance, I guess astrosmash was one of the most popular Intellivision titles, but I never really got into it for whatever reason, so left it off.