Block Shatter

Smash all blocks of the selected color, before the time runs out. You have 6 seconds before the color changes.
When the time ends or all selected blocks are smashed, the color changes and the timer resets.
If a selected block is not smashed within the time interval, it turns to metal and can no longer be destroyed. You can have only 10 metal blocks before the game ends, so be careful.
Each block reduces time by 0.3 seconds. A metal block bar is tracking the danger level.
Blocks give 3 point, when their color is selected and 1, when it is not.
When you do not have a new metal block 3 color changes in a row, you get a streak bonus. The streak bonus is 5 points and is increased by 5 every consecutive round. When a block turns to metal the streak stops and the bonus is reset.
Tips:When you have time, leave one block, crack all of the other colors and smash the block you left right before the time runs out.
When there are too many blocks of one color, use another color's time to smash them or just catch up.