The game is a serious clone of Super Mario Brothers. Its cool because as I play Lep's World I am reminded how much I love Super Mario Brothers and how much I want to play it on my iPhone.
Lep's World is a side scroller where you are a Leprechaun trying to collect your lost coins from your pot of gold. Instead of the Leprechaun getting a fire flower, he can collect acorns he can throw at enemies. In the typical Mario fashion, Lep can hit bad guys on the head. Some enemies have spikes so...

I tried it and the soft keyboard is killing me. Maybe its my phone, but I cannot get the ******* to continually run left or right.
So far the controls have been ok. That said during my second play through I've had a rougher go with the controls. Love my phone, wish I had real buttons for these games.