Sun Bombs

Sun Bombs is a Brain Buster in Plants vs. Zombies 2: It's About Time unique to the Far Future. In this Brain Buster, falling sun is replaced with purple destructive sun. If the player taps the sun while it is still purple, it will deal 25 normal damage shots to any zombies and destroy any plants in a three-by-three area around it. When the sun falls all the way down, it will turn into normal sun. Sun-producing plants besides the Sun Bean cannot be used in these levels. It is played in Far Future - Days 4, 19, and 24. After it touches the ground, it will turn into a normal sun. Like normal sun, it disappears if not collected quickly.

Sun drops from the sky far more often in these levels, and it is up to the player whether they want to collect the sun, or use it as an attack towards the zombies (assuming that there are no plants nearby). It is very useful when a horde of zombies will attack the plants.

Levels
The Roman numerals are used for disambiguation purposes, based upon versions of the game prior to the 1.7 update. The parentheses show where the level is located in the style used after the 1.7.

Trivia

 * So far, this is currently the only Brain Buster that focuses on sun.
 * If the player keeps collecting the Sun Bombs, a message will say "Wait until sun falls to the ground to collect it".
 * The levels in this Brain Buster are unusually spread far apart.
 * It is possible that the sun is purple while it is volatile because purple is the opposite color to yellow.
 * If the player triggers a Sun Bomb to destroy a Robo-Cone Zombie, he or she will get the Sun Damaged achievement.
 * That is also the only achievement that is based on a Brain Buster.
 * Unlike the normal levels, this is the only Brain Buster where in sun falls more constantly than the original levels and its Endless counterpart.
 * Sun Bombs seem to glow slightly more than normal sun.
 * This is the second world-specific Brain Buster that lets the player choose their plants. However, sun producing plants are not allowed. The first is the Powder Keg from Kung-Fu World. The third is Dark Alchemy in Dark Ages.
 * Despite sun-producing plants being banned, Sun Bean can still be used.
 * The player can only use sun-producing plants in the tutorial level of the Chinese version.