only 2
No; you can only get Call of Duty: Zombies HD or unofficial strategy guides for Black Ops.
There arevunlimited levels
Call of Duty: ZOMBIES HD, available only on the iPad and Call of Duty: World at War: Zombies II came out for the iPhone and iPod Touch
Enfinaty
Depends on what controls you are using, look in the settings
There is no highest level on nazi zombies the amount of levels you can get to is unlimited
Yes, it's called "Call of Duty: Zombies HD". I inserted a link to it on the App Store, see it below.
Unlimited
One of the last levels they come out.
Call of Duty world at war Zombies on iPhone
No the game is Call of Duty word at war or call of duty black ops and you must download the purchased game, buy the PC game Disc, or there is an iPhone iPad, & iPod game called Call of Duty: Zombies for those devices for $4.99
no Call of Duty for PS2 has Zombies