Just make sure that the projectiles don't overwhelm you and you should be fine. For the whale, make sure you lock onto all infected spots with
and fire with
. If you leave them unpurified, they'll turn into projectiles and attack you. Same thing with the Pheonix. Just watch out for the projectiles while steadily locking onto and taking out the little nodes streaming off of the wings. Overall, the level is pretty straight forward, making it good for grinding stars. If you need more stars, simply replay this level.