I really liked the movement mechanic in this one! Having to aim your crystal and choose the right moment to launch while platforms and hazards move around creates a really nice mix of precision and timing. I also appreciated how fast the retry is after you explode, because it keeps difficult sections from becoming frustrating and makes you want to immediately try again. The later sections also introduce enough variation to keep the idea interesting. My main suggestion would be a little more guidance at the beginning explaining the launch mechanic and which obstacles are dangerous, so the first few attempts feel less experimental.