Crazy Taxi Roguelike is a fun idea, and pretty well executed here. I definitely think some of the obstacles are less of a hazard than others (The Oil slick didn't seem to do too much if it's placed on a straight road, for example)
We originally planned for you to be able to pick Hazards, Challenges and Assistance cards but only had time for hazards. If we update the game we'd love to add more hazards and the other types of cards. Thanks for playing!