. In Crazy Dave's car I see the slot being sold for $80, but it has a sold out sign over it. Get ready to soil your plants as a mob of fun-loving zombies is about to invade your home. Explodonator - Blow up Still requires 10 seed slots. · You can't get 10 seed. It's quite expensive - $80, However, you will probably want it if you replay the. The Wall-nuts and (non-gold) magnets are ditched, replaced with relatively inexpensive Kernel-Pults in Pumpkins. When will I be able to purchase this? Seed slots represent the number of seed packets the player can bring into a level. Use your arsenal of 49 zombie-zapping plants — Peashooters, Wall-nuts. 10 seed slots is the max on the PC version, at least. They have different designs in each game. At the beginning of the game. I'm not positive about this, but I believe there are only 9 seed slots available in the iPhone/iPod version of the game. The player can only buy nine seed slots, much like the Nintendo DS version. The iPad version was called Plants vs. The Kernel. Use your arsenal of 49 zombie-zapping plants — Peashooters, Wall-nuts, Cherry bombs and more — to mulchify 26 types of zombies before they break down your door.