i need tips

my tama is a girl (named lisa of course )

she wants to be a great and rare tamagotchi

any tips?

It would help if you could tell us what version you have so that we can better help you (or provide a picture). These are some of the codes that TamaTalkers have contributed, and as you can see, they vary based on what you have: https://www.tamatalk.com/IB/index.php?showforum=44. So we need a little more information from you to go on. By the way, the link I provided us under the "Tamagotchi Codes" section on this board. If you take some time to browse around, you'll surely find a lot of great tips!