i got this game second hand. i bet they were clad to get rid of it, if only i had come here first.....
after you have done a level you have to do like a DNA puzzle were you shot coloured balls to the right place while things are shoting at you, one hit and you have to start from agrin on the level you got the DNA from which could get for some a bit anoying.
If you get hurt to much and die on any level which doesn't take much you have to start all over again at the start of that level, no such thing as check points im afraid. I would save this game for a rainy day, but the novelty runs out pretty soon. don't let the name trick you, its nothing like the movie.