Repeater

The Repeater is the first advanced pea-shooting plant you get, firing peas twice as fast as the Peashooter, but only taking one space, allowing you to place more of them on your lawn.

Suburban Almanac Entry
Repeater

Repeaters fire two peas at a time.

Damage: normal (for each pea)

Firing Speed: 2x

Repeater is fierce. He's from the streets. He doesn't take attitude from anybody, Plant or zombie, and he shoots peas to keep people at a distance. Secretly, though, Repeater yearns for love.

Cost: 200

Recharge: fast

Strategy
The Repeater is a good plant, but can be expensive in the early part of the game. Upgrading it with the Gatling Pea to fire four shots instead of two or putting a Torchwood in front of it are both good ways to increase the damage output, although the Gatling Pea is more space efficient. (If there are multiple Gatling Peas in a row a Torchwood should also be used to maximize the damage per plant instead of having to plant twice the number of Gatling Peas for the same effect.)

Trivia

 * In the Mini-game Slot Machine there is a plant on the slot machine with four leaves at the back like the repeater but what seems to be a Peashooter's head instead of a Repeater. The reason for this is unknown.
 * It is possible that the designers for the art confused the Peashooter and Repeater due to their similar appearances. Only, the leaves are different.
 * All of the Vasebreaker puzzles except Vasebreaker and Hokey Pokey include Repeaters which shoot to the left instead of to the right. While these use the reversed versions of the graphics for the standard Repeater, internally they are a distinct plant (code 0x34 instead of 0x7).