Board Thread:Plants vs. Zombies 2: It's About Time/@comment-28731720-20140808021718/@comment-25154254-20140816134723

@KinglerMaster: Nice find! I recognized it now.

Another idea from Bananah:

Bananah

Sun cost: 150

Bananahs are slippery that makes the zombies slide onto forward. May fall into the holes.

Digger Turnip

Sun cost: 200 (then 600, 1800, 5400 and 16200) (Max: 4)

Digger Turnips create a hole that makes the zombies move into another lane. They can fall into holes while sliding.