I tried to play the game with mouse and keyboard, and the controls was not very good. I also seem to lose my things in the inventory. But the idea seem fun.
The movement speed was so slow that it was impossible to do it with in the 4 seconds. I am also pretty sure the mouse courser hit the edge of the screen. The issue could be something with frame rate.
I am sorry wrong game. I though your question was about another jam game.
You asked what happened with the things in my inventory? I am not totally sure, but after I have opened and closed the inventory tab some times, I have for some reason lost nearly everything.