A: Yes. The alternate ending (found by collecting all 13 hidden orbs) is in all versions.
A: Common crack-scene bug. The official v1.3 patch fixed it. Repacks based on older releases may have this glitch. playdead inside pc game full repack version
But before you download, there is a lot to unpack: What makes INSIDE a modern classic? What exactly is a "repack"? And what are the risks and ethics of choosing a repack over an official copy? A: Yes