This is truly an awesome game! I really like it. As some one who is very much into puzzle games I found this to be a delightful surprise. There are only a few things that I would suggest updating or changing. 

First off, the name of it is Ice of Time. How does this relate to the over all theme? The blocks are tan instead of some color that makes you think of ice. Though it does remind me of sand. If you really like the name --which I personally do-- change the theme a bit more. The star could become an ice crystal shaped like a hour-glass or some other time-telling device. I think changing this detail would make it more than just a jig-saw puzzle. 

Secondly, the very first level might be just a little too hard to just start off with. I love challenges. But not every one does right off the bat. 

Lastly, a reset button would be wonderful. As I keep trying the first level. I find it odd that after the copy cube disappears --and there clearly isn't a way to complete the task without it-- hitting the back button takes you back to the main menu of the game. The refresh button does the same thing.

Those are my thoughts and I hope they are helpful! 

Another thing that would be good to add --I thought about it this morning during coffee-- there should be a menu that allows you to read the tutorial rules again. :) Anyways, I'm glad I was able to help. Feel free to contact me if you want more feed-back. 

I enjoyed this  from tutorial through 4-6 or so and then had to stop ust because I could easily have spent too much time on it.  So, it has that progressively addictive quality (at least for me). I didn't understand the how the time travel worked at first, but I suppose that's an intentional partof the puzzle?  

I also briefly got stuck after the tutorial because I didn't realize that I was supposed to click on the highlighted level. On my browser it looked more like the highlighted level was grayed out, indicating "complete". Felt kinda goofy once I realized that was the next one...so I guess it's mostly on me. I think a lot of puzzlegamers would get the visual que pretty easily, but I'm more a person who likes an obvious instruction, atleast for things than't arn't meant to be figured out as a opuzzle.

It's a great idea. I look forward to trying out your revisions when you get to them.

4-4 I believe. The numbering seems a little strange for the levels. It's quite addictive as I will likely play some more levels when I have a free moment. What made you want to make this sort of game?

Hey! Just played through level 7. I like the revisions. I replayed the tutorial too.  The new mechanic is helpful. Here are a couple other things I noticed this time through.  I hope it helps. 

[1] I noticed that when I finish a level, and timetravel blocks are still counting down if I click anywhere except the next level button it seems like I can get stuck on that level.

[2] Every couple of minutes or so there is a momentary interuption in the soundtrack and this message is in my js console...

> (index):1 Uncaught (in promise) DOMException: The play() request was interrupted by a call to pause().

This is a really good concept, you should make it so it's a little character running around like intelligent Qube.

Another idea: put a unique message after each level, like fortune cookie wisdom stuff.

I gave it a try, it was a nice little game.  I may have missed it, but a way to access the menu while playing would have been nice.

Awesome.  I look forward to playing it through.

I can't wait to play a bit! Everything looks great!

Where to find the link?