I am someone that isn't fond of games that require arrow/wasd sequences. I'm wondering if there could be an option for the space bar to be used in a timing sequence instead? Maybe as a part of a difficulty setting or something, so that those that enjoy arrow/wasd sequences can still do them at a higher difficulty. "Casual" could be space bar," Normal" could be arrow/wasd. Normal could be a bit more rewarding by increasing the chance of better rewards.