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. When you tap the sun while it's still purple, it will explode all zombies and plants surrounding it. When the sun falls all the way down, it will turn into normal sun. Sun-producing plants cannot be used in these levels. Purple sun will explode and can damage both plants and zombies if collected before falling to the ground. It is played in Far Future Days 4, 19, and 24. Purple sun deals at least 25 damage on the tile they were tapped, and will deal less splash damage in a 3x3 area. Players can tell where Purple Sun will stop because of the Purple "Ray". After it falls to the ground, it appears as normal, regular sun. Like normal Sun, it disappears if not collected quickly enough.

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 the only Brain Buster that focuses on sun.
 * If the player keeps tapping purple sun for a while, 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.
 * This 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 aren't allowed. The first on is Powder Keg from Kung-Fu World.
 * Originally, Far Future was going to have 3 world-exclusive brain busters.