Normal vs Hard?

Anyone done both and see any difference? Have gone through "normal" and now half way through "hard" and there seems to be zero difference in skill required.

Hi - I assume the difference will be the time you have to get 3* and it being less on Hard.

Finished on hard and really never pressed for time except two levels. This really is the easiest one of the games to finish. Most of them you have to really be on top of it get by the "hard" level - not so much on this one.

I just started Hard Mode and the 2 differences I found were that the time goes faster and you can't task ahead.

I've got 5 levels to go, and I'm going to miss playing this game so maybe I'll restart in Hard Mode. Still can't get the blasted sheep level.