Thanks! I always try and keep my games light and keep any 'boring' time to a minimum. This one is a bit more frantic than I usually like, wish I'd had a bit more time to flatten the difficulty curve a bit! The Mario style turtles have a larger object avoidance on their AI so they'll often do their own things rather than run towards the player.
UI for rear cam was unbelievably easy, just need another camera on the player pointing backwards (y: 180 degrees), create a render texture then assign that texture to the camera. I had another implementation but bugs meant I had to drop it - funny what a 5 minute YouTube video can show you.