A free app for iPhone, by Ayumu Kinoshita.

Dont step the white tile is a simple game that tests your reflexes and accuracy. You have to tap on the blocks to follow the path. The path will move at a constant speed, so you need to be really fast to reach the end. If you manage to complete the path in the given amount of time, you will get a score and a new level will open. There are different modes that will test your speed and accuracy. There is a time attack mode, where you have to complete the path in the given amount of time. There is a long run mode, where you have to complete the path as far as you can in 11 seconds. You will also have a chance to play in the step mode, where you will have to tap on the blocks as many times as possible in 20 steps. You will also have the possibility to play in the score mode. The score will be recorded and you will be able to check your improvement over time. There are 40 kinds of unwanted toys that you can get. These include a variety of different items such as a hammer, nails, screws, and other building elements.