North American Batman C64 V1.0 Disk Owners - V1.0 vs V1.1 Changes

I bought a 1989 Commodore 64 Batman game today. Then I noticed one tiny sticker: V1.1. 🦇 And suddenly, this wasn't just another pickup. Batman: The Movie — Commodore 64/128 The North American Data East big-box disk release, licensed from Ocean. The box is marked: V1.1 Interesting. Then I opened it. The original 5¼-inch disk is factory-labeled V1.1 too. Now I had questions. I've spent part of today digging into it, and I've confirmed that a distinct C64 V1.1 revision really did exist. There are reports within the C64 community that an earlier Version 1 contained a potentially game-breaking problem and that V1.1 corrected it. But here's the problem: I haven't found definitive documentation establishing exactly what changed. And I'm not going to turn a story that's been repeated for decades into historical fact without evidence. So now I'm hunting for the evidence. My copy gives me a good starting point: V1.1 packaging. Factory-labeled V1.1 disk. Data East manufacturing number 406-0275-00. Original unused Data East registration/warranty card. And the rabbit hole is already getting deeper. The C64 version had its own development team: Zach Townsend — Programming Andrew Sleigh — Graphics Matthew Cannon — Music I've also uncovered connections to Ocean's C64 cartridge technology, North American and European releases, multiple cracks and trainers, and later preservation efforts. But right now, one question matters most: What exactly changed between Batman V1.0 and V1.1? That's what I want to solve. C64 collectors, Ocean historians and preservation folks: I'm looking for an original North American V1.0 Batman disk. If you own one—or know someone who does—I'd love to hear from you. If we can locate the original revision, I want to compare the releases and determine exactly what changed. Sometimes you collect the artifact. Sometimes the artifact gives you a case to solve. 🦇 #Commodore64 #Batman #RetroGaming #GamePreservation #Track18 HONOR. INVESTIGATE. PRESERVE.