Before I realized you could swim, I thought that the logs spawned much too slowly. Afterwards, I thought that the game was much too easy because you can just rush across. Didn't notice much of a difficulty increase in danger bunny either, I think I'd have to try to get shot.
On the other hand, endless runner was harder and also more fun. There were more cars so it was actually challenging. If I was missing one thing in that mode it would be the ability to run backwards. Maybe it could be done where you could move down but the screen doesn't scroll with you and then when you get back to the center the screen starts scrolling again.
Graphics were good. Sound was decent.