Finally done with Planet Foggia, a minibossrush level.
Found a cheese on the third miniboss, where you can make the stars get inside of the tube that miniboss is in, so you don't have to wait for it to get to the edges, when he's on the middle you need to have some speed to get the correct angle for the stars, so its not too fast at that point, but once he gets to the quarters of the tube there's no need to get the stars inside, standing on a precise spot and throwing the stars at a specific strength make the stars hit a spot where one of the holes in the tube are, barely hitting it.
Now all it's left are the K-9 levels.