Just to add a bit more...
The first time of completing the demo, my score appears twice on the high score table.
Getting to the end after that I sometimes got to input my details and sometimes it just shows 'Thanks for playing'.
Occasionally the 'Thanks for playing' appears at the same time as inputting the name.
The score during the game doesn't handle 4 digits.
I failed a game because the 3 items were still being 'merged' in the boxes after hitting zero time. So I had caught all the items when the time was up but still 'failed'.
I did like the time stealing idea!