Press the screen to release a bubble containing a dinosaur. Align two or more bubbles with the same dinosaur to merge them into a new, evolved creature. Aim your shots carefully to form chains of matches for higher scores. Use the walls to bounce bubbles into hard-to-reach spots. Think ahead your moves to prevent the bubble queue from reaching the bottom. Advance your dinosaurs by continuing the chain reactions. Clear all bubbles before the queue fills up to advance to the next level. Be mindful of special bubbles that can aid or complicate your progress.