O.W.L. - One Wave Length

The Symphonie Forest was once a place of harmony, where melodies flowed with the rivers and every creature moved in sync with the sound of the world. But that harmony has been shattered.
The Meowestro, a wicked tyrant, has unleashed waves of dissonance, corrupting the very heart of the forest. The once-peaceful denizens now march to his command, their souls bound by the chaos.
Only you - Stryx the Owl and Katt the Cat can withstand against the rising army of foes. Armed with your instruments you must battle through the different seasons of the forest, strike in sync and restore the music to it's people.
Gameplay
OWL is a top down, rogue like bullet-hell where you go through randomized prebuild levels. Only when you are in beat you are able to defeat the enemies, as the enemies follow the same rule. So listen to the Music patterns your enemies make and predict their attacks to reach the final boss, Meowestro.
Your trusty shiny seller is able to take the shinies you collect and gives you small stat increases in return.
Every bonfire you encounter you unlock powerful new Instruments that will aid you through your journey, increasing your damage and overall stats.