Press the drop button go drop the bucket.(Don't drop it too early!) The game can be a little slow sometimes and it might say you died even if you lived. I'm still working out the bugs.
Please report any bugs you find in the comments. This project is just the prototype. More better versions will come out and may include levels, more gear and maybe other stuff too. Here's the newest version. https://scratch.mit.edu/projects/1298292167