Wow, this is a very immersive Laika related game! Thank you.
I appreciate that you put the effort to include dog vision (gray scale). That you included a model of the R7 rocket. And that you included the real video of Laika at the end.
One minor issue - in order to get into the capsule I had to jump and click LMB in the air. Otherwise the interaction is not available. This may be game breaking for some players.
It was nice that there was a section at the end when she is in outer space. Maybe it would be even more interesting/evocative if the view went to 3rd person and focused on the dog's face. But that would require some animation which was probably too much for the jam period.
Good luck!