100 Doors of Revenge Level 10 Walkthrough is shown below with screenshots. The answer is explained in detail in the text. Look at the screenshots for more help. If you only want to look at part of the guide and not cheat, just look at part of the solution. This will help you go to 100 Doors of Revenge level 11.
1. Drag the wheelbarrow to the left into the fire hydrant. Pick up the bucket.
2. Pick up the bucket and use it on the water. Put the bucket full of water into where the key is.