YAR! YAR! I liked this :D
I had an instance where a fellow pirate stuck to my character and I couldn't shake it off but overall I giggled when the pirates fell laughing :D
A note on the controls: having a WebGL game where you have to use Mouse1 to do the swing attack caused the context menu to show up... I don't know if it's because it didn't capture my mouse though
I had to stop at wave 4 but not because I was beaten... I have to work! A nice game overall, good job!