IA/VT Colorful

About

IA Visual Tracks -COLORFUL- (also known as "IA/VT -COLORFUL-") is a game produced for the PS Vita by MARVELOUS Inc. It stars 1st Place Co., Ltd.'s VOCALOID, IA in her first video game role. The game was initially due for its Japanese release on July 31, 2014, but after several delays was released on July 30, 2015. When Marvelous released official apology notices about the game delays, there were no officially statement as to the reason behind the delay, although it was mentioned that "the further improvement of quality" was a key factor.

Source: IGDB