Jalapeno

The Jalapeno is a high-damage explosive that can clear an entire lane of zombies and even melt ice from Zombonis.

Its shape and name are based on the Jalapeño chili pepper, a cultivar of the Capsicum annuum species, valued for its spicy flavor.

Suburban Almanac Entry
Jalapeno

Jalapeno destroy an entire lane of zombies.

Damage: massive

Range: all zombies in a lane

Usage: single use, instant

"NNNNNGGGGGG!!!!!!!!" Jalapeno says. He's not going to explode, not this time. But soon. Oh, so soon. It's close. He knows it, he can feel it, his whole life's been leading up to this moment.

Cost: 125

Recharge: very slow

Strategy
Jalapenos can be good last-minute saves, since they can be planted behind an incoming wave, clearing the entire lane. Also, since a Jalapeno will melt ice as well as destroy a Zomboni and ladders, it makes a great addition to any levels with them. It takes two Jalapenos to kill a Gargantuar, so keep that in mind. You can also use a Jalapeno on a Gargantuar when it throws its Imp, as it will be destroyed along with the Gargantuar.

When dealing with Dr. Zomboss in the boss battle, the Jalapeno will destroy incoming snowballs he sends, as well as do some damage to his Zombot.

Note, however, that Jalapenos also unfreeze any zombies that can survive it,(Gargantuars and Giga-Gargantuars) in the same manner as Torchwood fire.

Column Like You See 'Em Mini-game
In the Mini-game Column Like You See Em, the Jalapeno can be planted in a column of pots to clear the entire roof of zombies, except relatively healthy Gargantuars.. These are only obtained once or twice, so they should be saved for either when huge waves 2 and 3 when Gargantuars appear, or when Ladder Zombies have placed ladders on your defensive plants.

Trivia

 * The Jalapeno's name is mispelled in game; The correct spelling is Jalapeño.
 * Because of this, the Jalapeno should be pronounced Hal-A-Pen-O as opposed to the correct Hal-A-Pen-Yo.
 * It seems that the Jalapeno is actually sweating.