I had to give up on the secret ending, I have no idea where it could be, I have explored everywhere led Eric in every room. Still nothing, no idea how many times I’ve completed the game now but I can speedrun it in around three to five minutes.
Had a lot of strange bugs, some really funny, watching Eric just staring at the garage door. If you can run into him when he is not chasing you, you can make him despawn and you are stuck zooming until he reappears (Does not always happen). Sometimes starting again right after completing a run will have Eric standing at the window before you do any chores. On one occasion after talking to Eric I lost all controls, literally he just kept walking past me, I was pleading for death. I have no idea how I did this but the bug only happened once. Oh and I found a way out the map, does not always work but in the chase at the end with Eric if you run into him he won’t always kill you and just push you back, you can use this to get through walls. Only managed in one playthrough, was attempting to use this to search out of bounds areas it just does not always work.
Still that might seem like a lot of bugs but I played the game a lot trying for the secret ending, I would not be surprised if it was 100+ playthroughs in the end. It was a lot of fun trying, but however you get it you have done a great job in hiding it.