SpeedTap

Actually quite an addictive game. The core gameplay mechanic works as intended and is quite fun, especially because the colors seem to blend more and more into each other over time making the game harder, so good job on that!

I just found that the minimalistic look you were going for doesn't quite work everywhere in your game. The main game screen looks fine, but the title screen and some of the (sub-)menus have some weird/inconsistent looking menu items (like the Google Play Logo (blurry) and Sound Button on the options screen).

I also think that you shouldn't force Google Play Login when you start up the app as a lot of people hate to do that. Maybe just do that when the highscore button is pressed or something like that.

Last, but not least, the soundeffects (well, the soundeffect) you are using can get monotone quite quickly, so maybe change the pitch of the sound piece on every press or use multiple sound effects for the button press.

Overall, your game sure could use some work (like every game does!) but I thought it was quite enjoyable and actually addictive for what it was, so keep doing what you're doing!

The game has the funny mechanic of clicking on the different rectangle. Game shows how to play clearly too. These are the two things I liked the most.
I think that you could improve IU. There is no visual or audio feedback that you are touching the button for example. Game's font also looks a little bit too boring (I don't mean the logo, it looks well).

The game mechanics is unique and challenging. But the graphics needs a lot of improvement. It is not eye catchy...

This is not a game that will draw us into long evenings, but you can face your friends.
Maybe some cool animation is missing that would make a simple game more attractive