The character felt slow in moving around, but the controls were easy enough to get the hang of. On many occasions I was expected to throw my shard to places I couldn't see, but there were never enemies or anything unexpected if I threw the shard offscreen, either, so it felt forgiving for a platformer with only one life. However, it felt really good to play these levels, especially if you thought of them as early levels of a larger game (that obviously couldn't be made in such a short time). Also, good job delivering the atmosphere; the visuals and music worked well together.