Ah - because for me I think I picked up the sword without pressing E, or maybe I did it without realizing :D
No worries mate, it's hard to finish a game in 2 days, especially if you're new to this. Props for trying, a lot of general things you did were pretty neat, just lacking a bit for it all to come together. You made the right choice to still publish it, some people wouldn't if it had some issues like yours.