Thanks! The game was originally supposed to have more characters explaining the story and the gameplay, but I didn't really have time for that. Also the game was going to have a bossfight, the town was supposed to have more life, I wanted to add more buildings and interiors but again I didn't have enough time. As always I pretty much overscoped. That "garage door" is the barrier that other characters are talking about. Actually if you go there and interact with it while you haven't got the right amount of warmth points it will say that you have to collect more and will display the amount you have to collect. I wanted also to add a character standing there and explaining everything about the barrier and wanted to add an animation of breaking the barrier with these warmth points, but there was no time to add these things and I had to publish a working game