Zippy the Circle is a game published by Breakthrough Gaming. On PSN, it was split into 5 separate purchases (each consisting of either one or two levels of the full game), each with their own trophy lists and platinum trophy.
They are old-school platformer adventure games, and as with other Breakthrough Gaming games, their trophy lists are extremely quick and easy. Players need to complete each level under a special restriction (such as in under a certain amount of time, or while finding all collectibles), each of which is straightforward to do.