I think a sky map would be awesome for HA, like on the first two stages your climbing up a mountain containing caves and shortcuts etc. Then you jump onto clouds that make it anti gravity (saying that the clouds are bouncy, kind of like in Mario) The stages on the clouds will be on little islands peeking out of the clouds. Then for the last stage, all the zombies go on that big triangle ship thing that you can see in the backyard, and the plants try to shoot it down. The zombies can go in little stations where they may shoot cannonballs back at them. The zombies story is that they were going to track the plants into one area, then trap them, then shoot at them. The ship would have about 10,000 hp. That's just because boss mode seed a bit easy to destroy in the first Gw.
Then I would also want to see a city map by a beach for g and g. You can go inside some of the big buildings. Thats all I could really think of.
