After reviewing several threads on the subject, and discussing with a couple of users, I’ve decided to compile a guide as to how evolution could work within zOMG! …or rather, a compiled series of ideas built into a single system.
I personally like the term Ghimorphing, but I'm willing to see it change.
Here’s a Ghimorph chart.

I personally like the term Ghimorphing, but I'm willing to see it change.
Here’s a Ghimorph chart.


It would work under the following circumstances:
If a user wants to upgrade their buddies into a slightly more powerful one, they can change its appearance by ‘feeding’ it orbs.
The feeding system will work like this: Pets would be updated with a meter counting the amount of orbs they have, much like a ring. The orbs required to Ghimorph more would increase with every available evolution.
Naturally, all buddies won’t have 4 total evolutions. Gnomes would turn into Couriers, Adjutants, Majors, And Generals; Giftboxes wouldn’t change at all, and Sand Golems would turn into Sandblast then step up to Duneslam.
If a user wants to keep their OMG small and adorable, they may choose not to feed their critters any orbs.
HOWEVER, if they have changed their OMG into a giant big monstrosity that they don’t want anymore, there should be a button that empties the orb tank and recycles their entire sum of Buddy-fed orbs back into the system.
I have forgotten to add the reset button to the example on my left. ninja