A launcher with version rollback (like how Steam lets you opt into betas) would allow players to revisit any previous alpha legally if the developer enabled it. You could request this feature on the official Hello Neighbor Discord or TinyBuild forums.
While "repacks" are often associated with unofficial distributions, and can be downloaded through legitimate platforms: Hello Neighbor 2 Alpha 1.5 Download Free Pc REPACK
However, the search for "Hello Neighbor 2 Alpha 1.5 Download Free PC REPACK" leads to a minefield of dangers. A launcher with version rollback (like how Steam
Most REPACK websites are not run by fans; they are run by profit-driven hackers. When you download a file labeled "Hello.Neighbor.2.Alpha.1.5.REPACK.zip," you are often getting: Hello Neighbor 2 Alpha 1.5 Download Free Pc REPACK
Yes! And it won't give your computer a virus.