Hello again!
Yoritoshi brought it to my attention that upon pressing the F12 key to take a screenshot of the final credits screen (to capture the total time played) it triggered the "Ok, I'm all done with the game let's go to the title screen!" action.
So this has now been fixed.
For the inconvienence, I've also added 5 more achievements to the game which brings the total up to 27.
One of the achievements is to beat the game in under an hour.
Can you do it??