***EDIT***
This achievement is tied to years 5-7. Thanks to I ASK NO ONE for the heads-up!
***EDIT***
Can be done with cheat codes quite quickly:
Once in the game, press
Select Extras
Select Enter Code
Enter the following codes, followed by
after each:
74YKR7 Score x2
UWCQHB Score x4
XK9ANE Score x6
HUFV2H Score x8
H8X69Y Score x10
2L2U6K Stud Magnet (not required, but helpful)
H27KGC Character Studs (not required, but helpful)
2FLY6B Collect Ghost Studs (not required, but helpful)
Press
to return to the Extras menu and activate your selected cheats with
.
This will bring your stud multiplier up to x3840. You should get this achievement before the second episode of year 5.