This game is already incredible, however it becomes outstanding when you consider that it was made in only 48 hours. It has an extremely fine levels of polish, the art style is amazing, the sound design is amazing, and I think its fair to say that its the best game I've played thus far in this jam.
The only issues I ran into were the following:
If I threw the shard onto spikes (or just did a bad throw) I would have no way to recall it, meaning I'd have to do a bad teleport and maybe even take a death due to how randomly the shard moves after a hit.
On one occasion, I had to restart the level because I spammed teleport too quickly by accident and got locked in a throwing animation unable to teleport.
When I played the browser version (chrome) the game had lag and colour issues. everything was red and the game moved slowly, however this could easily be because of my pc.
And finally, one extremely minor issue, is that I accidentally hit quit instead of retry after a death because there was no "are you sure yes/no" option, however because of the state saving that did not hinder my experience (which is also an incredibly uncommon feature of jam games).
Also, while I appreciate that there was a time limit for actual content creation, there does need to be more levels. I would be more than happy to pay for a full release of this game and would love to see the kinds of things you are able to add on to the mechanics displayed here.