Bobble: Bubble
For a complete visual walkthrough of all 100 levels and strategies for various enemies, watch this guide:
Simply beating level 100 is not enough for the "Good" ending. Players must typically be in two-player mode and reach the end to see the true conclusion. Bubble Bobble
Silver doors to hidden treasure rooms appear on levels 20, 30, and 40 if the player reaches them without losing a single life. For a complete visual walkthrough of all 100
For the "Best" ending, players must decipher a secret code found in a hidden room to unlock Super Bubble Bobble , a harder version of the game with rearranged enemies. Bubble Bobble
Collecting bubbles containing the letters to spell "EXTEND" grants an extra life and instantly clears the current stage.