All Blue - Make all tiles blue!

Category	Price	Seller	Device
Games	Free	Haruka Iwashima	iPhone, iPad, iPod

This is very hard puzzle!
Can you solve?
■■■ How to Play ■■■
You only trace tiles!
When you touch tiles, the color changes.
Let's make all tiles blue.

The number of the stages is 500!

[sound source]
・BGM
DOVA-SYNDROME
Space Town (Brand New Mix) - Jingle Version by Mr.Kimy
Three Keys (Freestyle Rap Beat No… by Mr.Kimy
Blue Ever by Mr.Kimy
Something Special Secret (Remix) by Mr.Kimy
Lying On Cloud by Mr.Kimy

・SE
maoudamashii
kurage-kosho
Music is VFR