Nice little memory game!
Visuals were nice, had a good consistent theme to it.
The falling down was oddly satisfying, especially when you could make beats with moving it on time lol.
The game was pretty simple with just Blue / Red, since you could just split them in half, but as soon as green was introduced it got way harder. I would've liked more time at the end to see the final product, since memorizing with such little time is very hard, but I can see that being a part of the challenge on purpose.
Wonder if there could be other mechanics introduced to make it harder, like rows or columns moving up or down by 1 at the end, or some blocks that switch when both are placed. Of course, if these were added, I think you would definitely need more time at the end to memorize.
Nicely done!