Could “impa codes” be a typo for “imp codes” — as in video game codes (The Legend of Zelda: Majora’s Mask — is a character)? Then “make piece” → create a piece of code or item.
The cleanest meaningful anagram of “impa codes” is: (C A M P S I D E) — but that uses only 8 of 9 letters (missing O).
Could it be ? No.
But one actual word/phrase from those letters is: (less likely) "Compa dies" — still odd.
Let me instead solve properly: impa codes → (has an extra o) — no. "Mosaic dep" → no. impa codes
Given it's a short puzzle, you might have meant: → anagram → "compa side" is wrong. Try: "demic soap" (nonsense). Try: "ape miscod" (no).
I, M, P, A, C, O, D, E, S
→ but that’s not quite a common phrase.