Using Unity 5, this is part 14 of a tutorial on how to create a Tetris Clone. In this part I teach you how to increase the difficulty of the game by increasing the level based on the number of lines cleared and then adjusting the fall speed based on the current level. The video also covers adding the number of cleared lines and the level to the HUD and briefly covers how to adjust the score that the player receives based on what the current level is.

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► You might also like to watch "How to make a game like Pong in Unity - Part 1"