So I have this game for my PSP and I think its awesome, really original fun & addictive.
You play as the God of the Patapon's, in my case "Cunt" as I'll never tire of them going "I love Cunt" "Cunt is the best!" "All Hail the Mighty Cunt!".
The aim of the game is to guide your army of Patapon's across each level using your magical ancient war drums, which instruct them and infuse them with energy.
You beat the drums in different sequences for different commands, having to time it with the background beat and the Patapon's chanting.
Has all the usual trimmings, minigames where you get items to better equip your troops or create more of them.
So if you have a PSP I recommend buying/downloading it there is an English version out.