This is a very nice game!
If you did it as an experiment then dont be thrown off by minor bugs and stuff like that, i think you have some good bases here for an actual full game and you need to explore it more!
not easy to accomplish something like this in 7 days, the art, the gameplay and mechanics with each enemy, and i like the puns like "all the luck in the underworld" :) (and u did it all in black n white!)
Please rate my game too :)