Plants vs. Zombies
"Insaniquarium" substantially influenced the development of "Plants vs. Zombies". The games have similar pacing, determined by the "drip-feeding" of pets and plants respectively, and choosing plants at the beginning of each "Plants vs. Zombies" level is analogous to choosing pets in "Insaniquarium". Fan also took inspiration from the film "Swiss Family Robinson," in which a family defends themselves and their home against pirates. Fan included elements from the trading card game "", which he had played with his girlfriend, Laura Shigihara. Showing her how to customize their card decks inspired him to design "Plants vs. Zombies" with seed packets—instead of his original idea of a conveyor belt that gave random plants—due to the seed packet system's greater complexity. While the conveyor belt was dropped from the more common game mode, it remained a special element in select levels. The use of multitasking between lanes was influenced by and was featured prominently in the old arcade game "Tapper".