Penny Pincher

Difficulty: Easy

Penny Pincher is an achievement unlockable on PC, iOS, Nook, and Android of Plants vs. Zombies. It is worth ten points on Game Center. The player unlocks it when they collect 30 coins of any kind without missing one in a single level.

Strategies
This achievement can be completed at any level, including Adventure Mode, but only if enough coins are dropped. The best levels to do so are Survival: Endless because large waves of zombies arrive. However, you cannot let any disappear or this achievement will not count. Playing the Last Stand Mini-game and using Marigolds and/or a Gold Magnet would be a good example. Another would be playing Whack a Zombie (or level 2-5) because the zombies drop coins very often in that Mini-game. It's easy to get this achievement in Zen Garden (the more plants you have, the easier you can get it). Another excellent way to get this achievement is through Wall-nut Bowling. Just wait for the screen to be filled with zombies, then send a few Wall-nuts through to make combos and therefore, earn coins.

Note: Diamonds will also count for the achievement.

Trivia

 * The name of this achievement is a reference to "penny pinchers"; people who are careful with money and pinch it before letting it on a surface.
 * The player can earn this achievement in Zen Garden, despite it not being a level per se.
 * The icon for this achievement is misleading, as only 18 Silver Coins appear in the icon when 30 are needed to get the Achievement.
 * It is possible that they are behind the other stacks.