Level editor: A robust and easy to pick up a level editor for user-created content, built right into the game. Steam Workshop: Full integration with Arcade Mode. Features Arcade Mode: A fun way to play user-made levels with your friends in up to 8 players Local Co-Op. "Project Arrhythmia" is a musical bullet-hell in which all things beautiful are deadly. Avoid the musically timed pulse of blocks and bars, and in the process, you might just find out what this mysterious "Project Arrhythmia" is.
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