As per the Plants vs zombies wiki: Extra Seed Slot ten - $80, (unavailable on iOS, Mobiles with Samsung bada OS, DS, and Android because. The. For Plants vs. One extra seed slot can be obtained in Pirate Seas, in a gate between Day 9 and Day 10 before the update or by completing Day 21 after the update. . Earn seeds, money and sun with the slot machine! Can you earn enough sun before the zombies eat your brains?Description of Slot Machine in Crazy Dave's. . seed slots plants vs zombies. All together, it costs $, to get all 10 seed slots. Dentro do jogo, basta apertar para girar a slot machine (custa 50 “sóis” por girada) e cruzar os dedos! Repita quantas vezes for necessário. Zombies on the iOS (iPhone/iPad), a GameFAQs message board topic titled "How do you unlock the slot?". You must first buy the seventh ($), eighth ($), and ninth ($20,) seed slots.