Level loading time isn't time for rest, it's time for preparing and planning as you'll be shown the layout of the bubbles. Even though walls in some levels appear angled, they don't affect the way your bubbles' bounce, so aim as you always do. Enhance your aim before firing off a bubble by pressing the game board and dragging left or right. Pulling the aimer back towards Mama Panda will cancel the aim. All types of achievements earn you bonuses like extra lives and power-up so keep them in mind when playing the game. You can use the spike ball to your advantage as you can aim a colored ball at it, if you don't want to use immediately, and the spiked one will pop it.