Power Brick 7 (usually "Score x10" or similar) unlocks through normal gameplay—no codes, no hacks, no shortcuts. Cheats corrupt saves and disable achievements. Here's how to get it properly.
Check GameFAQs or YouTube walkthroughs for level-specific locations. The community has mapped every stud.
Patience pays off. The "click" of that final multiplier activating is worth more than any cheat code.