This was great. Trying to get the shapes right at different speeds seems to be relly balanced well in terms of difficulty. The sound design is great and the background track was really fun and fit the frenzy mode really well. The UI and gameplay feels really polished, too!
My only criticism would be that there's not enough different shapes to make, or that they're not all equally difficult. It would add some more variety if there were different ones. They seem to show up randomly, so it can be a little luck-based getting a higher score.