Two tricks in this level are right at the start. The first is a trick that will move the camera up and will keep it there. This is done with a very precise movement: https://imgur.com/a/XYniz
Platform boost comparison: 
Holding up before and during the spinning green platforms causes the next one to spawn faster, saving time. There is a good video here: https://www.youtube.com/watch?v=-HS4x6kOqtM
Chomp section backup strat: 
At the end of the level, a gate-hack using a forward spit enemy can be done to open the gate to the exit pipe. In order for it to work, you must tongue one of the green spikey guys or its pot, give it a negative (left) x speed, such as by spitting it against the gate and having it bounce backwards, then respitting it into the gate. This is shown in the gif below. A faster way of getting this leftward momentum is shown in the videos to the right.
However this gate-hack requires the gate to be spawned with a correct camera position. An easy method to do this is to run down the last couple of edges rather than jumping down them.