Formal:
* Miyo-pimatisiwin! (This is a general, formal way to say "congratulations" in Cree.)
Informal:
* Nīsh! (This is a more casual way to say "congratulations" in Cree.)
* Kī-mīyawat! (This is a more informal way to say "you did well" or "you succeeded.")
Other options:
* Kinâsinawâ! (This translates to "you are good" or "you are excellent" and can be used as a congratulatory phrase.)
It's important to note that Cree is a diverse language with many dialects, so the best way to say congratulations might vary depending on the specific dialect being spoken.