Yes...I'm actually using mouse acceleration to measure the "hit" timing so you may need to jump with your mouse very coherently and quickly. But for some reason, this game might start lagging at some places(mostly after the flower occurs) and It just made it painful to capture the right input timing...
BTW the music is from Hi-Posi, the first one is Ato Nannichi, and the second one is 身体と歌だけの関系(ダンベック・ミックス).