iPhone Giveaway of the Day - piper

Piper is a puzzle game where players build increasingly complex pipe using pipe-pieces.
The hardest water pipe splicing game;
There are 90 passes, waiting for your challenge;
90 passes 90 splendidness;
There are 11 types of pipes, countless challenges, that is a game you never play;
Relaxtion, leisure, intellectual development, if you want to play this kind of game, please come to play piper;
There are many ways to find the answer, how many ways can you find it?
Play piper, challenge your ability.