Really nice game ! The idea fit well with the theme and the change beetween the 2 characters is very smooth & enjoyable. :)
Little feedbacks:
I was a bit frustrated with the movement. I touch bombs that i knew where there a lot because of the desceleration time wen you stop pressing the move key.
Also adding keyboard control on the menu so that we don't have to pick up the mouse every time we die would be really nice :)
appart from that, really solid game ! great work :)