If you take a look at the app from a distance – without glasses – you probably think you are looking at an offshoot of Threes!. The assumption might not even be so far-fetched, since it seems that the developer of Dropu was inspired by the design of the cult game. However, the bottom line is that the app is reminiscent of Tetris, as you will find out when you start playing.
The Puzzle challenges you to line up five numbers in a row. As a result they will dissolve. A number is not allowed to appear twice in the same row. Just as with Tetris, you drag the number blocks to the desired row. A downward swipe speeds things up. Coming up with combinations should be high on your list, which at the same time adds a touch of Sudoku to the game.