Please follow the instruction below before playing this map.
1. Put Tetris.wld in the world data storage folder.(C:\Users\*UserName*\Documents\My Games\Terraria\Worlds)
2. Put the map data in the player's map data file.(C:\Users\*UserName*\Documents\My Games\Terraria\Players\*CharacterName*)
3. Change the minimap into the overlay mode.
4. Adjust the minimap size so the white squares match the black ones.
5. Enjoy!