Common reasons cheats fail in The Sims Bustin' Out (GCN/PS2/Xbox):
Must be entered at the main menu (not in-game) on most versions.
Cheat codes (e.g., MIDAS, FREEREAL) must be typed exactly—caps, no spaces.
Try a new save slot. If no cheats work, the save may be flagged.
Warning: Cheats can break progression (e.g., skip objectives permanently). Back up saves first.