Giant didn't got much attention... But it was actually worth a lot!!!
On giants you can choose between three differerent characters.
It's the man: Mecc, he got some different guns, can build a base and get an copter.
The woman: Reaper, which got some bows with different types of arrows. She has magic like tornados, teleport and more. Reaper can also build a base and get a waterjet (that also work on land)
The last and largest: Kabuto! He is a big monster/giant witch grows larger by eating small alien-like people. Kabuto can't build a base but can give birth to two small dinosaurs.
On multiplayer you can chose which of these three characters you want to be. Not more than one Kabuto, but more of the other two...