Spore

Start a NEW game,start with creature or cell.and you can choose which one you want.

You can click the icon in the bottom right corner at any time during the cell stage to check your alignment (except when you are ready to grow legs). To become an omnivore, you must eat both plants and meat, depending on which (herbivore or carnivore) you chose to start. If you started as a carnivore, you must eat slightly more plants to equalize them and vice versa.

1. In the creature stage on up, you get to pick what it is, and what it looks like.
2. In the cell stage, you can switch your mouths to equal it out, but i found it to be so much easier to just buy 2 mouths, and eat the same amount with both.

I would recommend you start a brand new game. Then start off as a Carnivore or a Herbivore. Once you unlock the omnivore mouth and get enough DNA you can get it by going to the cell editer and adding it to where you want to put it. You should have an omnivore creature.

Also you can add both, the carnivore and the herbivore mouths and it should also be an omnivore.
Enjoy!

this is just a trick to get become omnivore but not unlock the omnivore mouth. just select carnivore or herbivore, then collect DNA. go to the creator cell(or the icon on the lower center), then use the another mouth other than the one u use that time. keep it until creature stage. at that time, don't sell the both mouth, keep it. then in the land, u can improve your specialist mouth but keep the unspecialist mouth like Carnivore, use the filter mouth and keep it even you improve your jaws to it's improvement. then you can get omnivore without the omnivore mouth. do you understand? i think i not undestand this if i was someone else...

If you're looking to reach the Blue card consequence, all you have to do is eat relatively equal ammounts of plant and animal matter.

I find the easiest way to do this is to start with the herbivorous mouth, continue the stage until you are about half-way to being a creature, and then switching to the carnivorous mouth.

I reccommend the herbivorous mouth first because plant matter becomes increasingly scarse as the game progresses, particularly in the last segment of the cell game.

once you reach the creature stage and proceed to turn your cell into an early creature, you will only be able to use the mouth that you chose until you get an omnivore mouth in the creature stage, now unlocked because you've unlocked the consequence card for omnivore. However, if you have dna points to spare, you may purchase BOTH mouths, and begin the creature stage as an omnivore.

I Stil Can't Have Omnivore On Cell Stage

I Got It
First Time You Choise The Diet Herbivore Or Carnivore (Only For Cell Stage Not Forever On You Grow To Creature The Choise You Eat With 3 Card Herbivore or Omnivore or Carnivore)

If You Herbivore You Must Eat Plant {Herbivore} And Red Shell {Carnivore} With Same Number Eats Like This
Plant 50 And Red Shell 50

just select which one you want Then unlock an onivore mouth replace it with your old mouth and now you can eat plants and meat this works on cell and creature stage.

If for the blue consequence: eat a lot of meat/plants at the end switch mouths and eat if you ate a lot, safe then look at the consequence thing if it's not blue then load and eat towards blue (if you are across it) switch mouths.

I you just need to be a omnivore without blue consequence, put both mouths on him when he goes on land.

When in creature creator you put a omnivore mouth on your creature and there your a omnivore.

If you picked carnivore, have a carnivore and a herbivore mouth, it doesnt mean you get herbivore moths, you picked what you picked. just avoid taking off the herbivore mouth while upgrading your creature

Simply select herbivore or carnivore and attach the other mouth the use the history button to figure out if you should eat more meat or plants, then when you reach the creature stage you should only be able to get omnivore
mouths(Attach both mouths during the cell stage or obtain omnivore proboscis instead of the other mouths),.