Just like @IsItLucas mentioned, my game also froze a few minutes in - I think it's whenever I got to 10 souls.
I still managed to rush to the slime boss and get him down (I just spammed attack and got lucky he didn't attack much hehe).
I enjoyed the opening, as simple as it was, as well as the map generation, and trying to dodge enemies to avoid having to fight and instead just get to the chests! I expect there would be more for me to like had it not been for the game freezing.
One thing I wasn't sure about it how the "Erase" theme fit into this - perhaps I just didn't get far enough to see it?
In any case, I think this is a pretty good start for a game - probably just a bit too large a scope for a single dev to get through in a week if I had to guess! :p