Good game, but...
It would be nice if there was some kind of warning before the background starting filling up with blocks. Other than that, 5/5, 10/10.
The game itself is pretty good. The only thing is that there is no storyline, or any other motivation to replay it after you lose once. I mean, sure, there's the Mochi highscores, but most people play the game just to play it and not to get the best score.
I would recommend making at least 15-20 levels with some kind of purpose on each level. Survive for a minute. Get a score of 1,000,000. Etc... That would make the game so much more enjoyable. Maybe even a 9/10 or a 10/10. But for now its a 6/10.
nice effects like the game very much
In the first moments, I thought it was absolutely sophomoric... but then the blocks started to fall in TWO colors, etc. That's when it became a frantic game worth one's attention.
This wasn't too bad of an idea for a game, but it defiantly needs alot of tweaking for it to be better. I'd suggest probably toning down the speed of how fast the blocks fall down and have them speed up the further you get into the game. Also the look of the background and menus are very dull. But overall I could see the fun in it and potential to be much better.