From the store page:

About the Game:
Sine Mora is a horizontal shoot'em up that provides a unique take on challenge, where time is the ultimate factor. Mixing classic shooter sensibilities with contemporary presentation, Sine Mora is a gorgeous shoot'em up that offers a Story Mode that weaves an over-the-top tale and an Arcade Mode that provides deep, satisfying gameplay to challenge fans of the genre. With many ways to manipulate time, Sine Mora features over 50 weapon combinations to complete each beautiful stage that form fits to the player's skills with scaling difficulty. Soundtrack composed by Akira Yamaoka and featuring boss designs by Mahiro Maeda.

Key Features:
Engrossing story integrated seamlessly into the action to elevate the user experience.
Unique, time extension based gameplay.
7 beautifully crafted, diverse stages.
Over 50 different weapon combinations with time manipulating devices.
Great accessibility - Story Mode is tailored to not scare away absolute newcomers to the genre.
Risk and reward - multiple difficulty levels in Arcade Mode with deep scoring and hidden rank system for the more experienced players.
Music composed by Akira Yamaoka, Sound Director of Silent Hill and Shadows of the Damned.
Featuring boss designs by Mahiro Maeda, one of the most prominent Japanese anime creators (Blue Submarine No. 6, The Animatrix - The Second Renaissance, Kill Bill: Vol. 1)".