A free program for Android, by SolidGames.

Ninja Playground is an amazing new free game, which is a combination of a playground and a game, where you need to build a system using different kinds of blocks and other elements, in order to get to the next level.

On each level, you need to make a certain number of blocks in a row, in order to open the next level.

There are several elements that you can use for this purpose, such as the different kinds of blocks, the various tools, and the different kinds of characters.

Once you have built your block system, you can get to the next level by using the different elements that you have built.