Wall-nut Zombie only appears in the mini-games ZomBotany and ZomBotany 2 and has high toughness due to its Wall-nut head, meaning it takes 1300 damage. It is comparable to Buckethead Zombies but it is unaffected by Magnet-shrooms. Tall-nut Zombie, its more powerful counterpart, takes 2400 damage, which is 600 less than a Gargantuar, but still can be killed with any instant kill besides the Squash and Potato Mine. Like other ZomBotany zombies, it does not have an Suburban Almanac entry.
Wall-nut Zombie absorbs 1300 damage per shot and its appearance changes upon absorbing 380, 740 and 1200 damage per shot before dying at 1300 damage per shot.
Wall-nut Zombies are equivalent to Buckethead Zombies in toughness, so most strategies against Buckethead Zombies will work against Wall-nut Zombie, except using Magnet-shrooms. It can be easily killed with an instant kill, but if you don't want to, just use a defensive plant to block and plant some shooters to deal with it, just like what you do with normal zombies. They are not a real threat comparing with the peashooting Peashooter Zombies because they don't shoot anything at you, so you can use the Garlic or a defensive plant.
- Like Tall-nut Zombie and Jalapeno Zombie, it has no tie (except in the Android version).
- It is shown as one of Dr. Zomboss's failed attempts at his shrink ray in the Plants vs. Zombies DS Trailer.
- Wall-nut Zombies are weaker than Wall-nuts, as Wall-nuts can absorb 4000 DPS and Wall-nut Zombie can only absorb 1300.