You probably all know about PvZ crossover fanfics like Plants with Angry Birds?

Well, I have thought about making another PvZ fanfic, called "Three Worlds Collide". It will combine Plants vs. Zombies, Sonic games and Mario games. I'll tell you what the storyline is going to be like:

Basically, Dr. Eggman has caused three different universes to merge in one of his experiments. He, Dr. Zomboss and Bowser make a temporary alliance to defeat their enemies. They kidnap Sunflower, Sonic and Yoshi to lure their enemies into a trap. Tails, Knuckles, Mario, Luigi, Peashooter, Wall-nut and Potato Mine must work together to stop the villains and seperate the universes.

Do you think this is a good idea for a fanfic story? Say your thoughts in the comments.