Boomsday

Boomsday is unlocked after beating the sand dooms once all plants VIP plants in the old levels are unlocked.

New plants

 * Hiccup Lemon (S1-5)
 * Sherbet Lemon (S1-10)
 * MORE COMING SOON

Levels

 * + means a planting spot.
 * : means a zombie path.
 * / means a grave.
 * - means debris.
 * ( means a lawn mower