Hi :)! You asked for some feedback, so here I go. The glowing dice look quite nice and the music is well chosen; I'll focus on what you can improve though, as that should be the most helpful.
Dice Attack: The idea is very simple – that can't always be necessarily bad, but there's nothing that makes it unique. A great way to go about this is to add a catch. Why not add some dice which you shouldn't click? How about making the dice move away if you approach them from below? What if the dice were invisible and you only knew by an indicator whether you're getting closer or further away?… Jonas Tyroller made a great video you may want to watch on how to come up with ideas like that using "the BUT method".
Another thing that could help here in particular is adding variance. You could make the dice spawn with a random rotation to make them look more interesting. Another thing to consider is randomising the pitch of the sound when you click on them.
Dice Tosser: Predicting a dice roll isn't very fun on its own. The decision is meaningless as the chance is always 1 over 6! I would recommend watching this video on where to look for the fun.
Congrats on joining the jam and hope that helps :).