The block hero's run in the game Merge Rush Attack is limited by all sorts of obstacles that cannot be bypassed, but can be destroyed. But it won’t be easy for the hero to break through the wall alone, which means he needs assistants; they can be added by clicking on the track and adding units. Combine three of the same to get a runner with a higher power level. The higher the level, the stronger the character and the easier it is for him to destroy any wall and run further unhindered in Merge Rush Attack. Frequent pressing can lead to overheating, starting from the fifth level.