Ok heres one:
Your baby and you have just landed on earth...you escape your spaceship and you have to roam the human cities and find people to lay your egg into so you can evolve.
The main aspect is a type of splinter cell game in which you have to sneak around and find isolated victims to lay the egg in.
You can get combos to by controlling the people you have already laid eggs in and use them to spread your eggs around.
Once you have enough power from the people you have laid eggs in you can evolve into your true baby form and thus you can start trying to hunt down the z fighters to find a permanent host...
Another cool idea might to have a birdseye view down on a city, and you are the seed, it jumps into one body and you can control the host with the analogue stick. You then hit X to jump to a nearby host. You have to cross to as many hosts as you can within the time limit, and can only jump to another host in close proximity. After you leave one host they drop to the ground and you can not use them again.
What do you guys think?
