Little Hero

There is a powerful alien invasion approaching, it is just too strong and the Earth will fail. Before the final invasion, the aliens are using their technology to create a lot of rain. Their plan is to raise the sea level and flood the planet. A little boat knows about an ancient magical tower on the top of the mountain. The tower is very powerful, and it can perhaps stop the alien advance. A little boat plans to use the rising sea level to reach the top of the mountain and then activate this ancient weapon. However, the aliens are trying to stop him. He needs your help.