I am working this cosmetic upgrade for Secretum Labyrinth Dark Castles. This is a proposed upgrade that I am testing currently.  This makes the coins have a flashing animation when they appear on-screen. The liquid inside potion bottles have a sparkling bubbling/movement. No final decision has been reached yet. Each time I make one of these changes requires more beta testing, and delays the release of the game.
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I am sorry that some work-in-progress videos had to be taken down. Video61 and I came to an agreement that we should not be posting about games until they are ready to go up for sale. I was posting work-in-progress videos to gather feedback to get an idea of what people like. However, this sometimes had negative results. Some people nitpicked minor stuff with Secretum Labyrinth games just because Video61 will be selling the game, and not someone else.

Some good news. We decided to produce the game with the animated character set. This will enhance the gaming experience and add more of a NES Zelda like game play. This the latest enhancement I made lately to this game. The other upgrades I made was making the encoding small that draws each screen, so more screens can be stored within the cartridge space. Added a storekeeper on the screens you need to buy items. Added a "knock-back" effect when an enemy strikes you. A colored background behind the Hitpoint (HP) indicator. Green when poisoned, Red when low.
The primary reason why the game got delayed was when we started making games for the Atari 5200 and 7800, they sold, demand for them was much higher than just 8-bit games. When I did 8-bit games, I made the 5200 port also. The other reason is that I like to tinker with games that I wrote to see if I can make something interesting happen. Some of the stuff I did enhanced Secretum Labyrinth and Video61 really liked them. Each time that happened, it required additional internal beta testing to make sure a small change did not create an issue that will pop up playing the game for a few hours.
All I can say, that when I worked with Video61 directly, things got better and evolved over time. We had to figure out stuff, it was a learning curve. I am sorry that I got involved in responding when other threads went off track, that just led to it going further. If anyone has a prior issue with the games we are involved with, please email or post it somewhere where we will have an opportunity to replay and resolve the issue. Video61 frequently posts on Atari.IO now. As long as you are clear about the problem, and civil, we will reply.

From what I know, Video61, Lance has been selling for Atari since the 1980s. When Atari was active under Warner Communications, then later Jack Tramiel, he was a much larger operation. When Jack sold Atari, Lance acquired a lot of material from Atari. You may need to talk to Lance to get further details. His email is on his website.
I did not get involved with him until Sal contacted me around summer 2007 about porting an Amiga game called Battle Squadron. At the time I was working on various PC games and doing work on Jungle Quest when I had spare time. The Battle Squadron project never panned out and did not hear from Sal until late in 2007 to do an Atari 8-bit version of Tempest.
What other information would you like?