The controls on the pipe were a bit unintuitive. Moving left or right into the pipe caused me to plummet when I would expect to stick to the pipe. I didn't like that damage was often unavoidable. Rather than attempting to avoid the radiation, my objective instead became, "just finish the level as quickly as possible." That effectively made the radiation irrelevant and I was just playing Super Mario on a time constraint. The music was nice. Keep up the good work!