I'm pretty sure this is how you get a Mimitchi...

[Pupsluv24]

This is how i got my Mimitchi...

1. Training bar must be half way to full...

2. Must keep it at his/her base weight...

3. Play lots of games with it...

4. Never let it's hearts drop down more than 2...

5. Clean up his/her poop AS SOON AS POSSIBLE!

I'm Not Sure... But Hope I Helped,

Pupsluv24

 

[GotchiGirl96]

Remember, don't be discouraged if you don't get a Mimitchi after trying this method. Your character mostly depends on care, but there is also some randomness in there. There is no sure fire way to get every character. Just experiment, and be happy with what you get.

GotchiGirl96

 

[dr.tam]

training bar should b full

 

[marikochan]

I've gotten a Mimitchi that wasn't at base weight before I give mine lots of snacks, but I take reeeallly good care of them. The hearts are never empty.