Space Invaders was by far the most played cart on my 2600. It was so faithful to the original arcade game and the difficulty ratcheted up just right. I hadn't

Space Invaders was by far the most played cart on my 2600. It was so faithful to the original arcade game and the difficulty ratcheted up just right. I hadn't seen your version until now (wow!) but it does a great job of contrasting the trades that the designers of these games had to make when the resources they had to work with were so limited: here, a lot more invaders vs. substantially less resolution on each.