Back to the Future: The Game
60 Achievements
8-10h
PS3
Marty and the Pinheads
Use the spray can to paint Marty's band name in the alley.
22.8%
How to unlock the Marty and the Pinheads achievement in Back to the Future: The Game - Definitive Guide
TlMB0
*Missable* Once you see Einstein go into the back alley, you will be able to pick up one of Jennifer's spray paint cans, by interacting with the "Ammo Box". Once you have it picked up, press 
to open up the menu, then equip it. With it equipped, interact with the "Wall", and Marty will paint his band's name on the wall.
Refer to "Final Solution" 
for the trophy walkthrough.
Rezidentus
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This guide was translated automatically.
The trophy is easy to miss.
Episode 3.
When you see Einstein running into the alley behind the bar, follow him, take one of the paint cans that Jennifer uses and use it on the wall.
Episode 3.
When you see Einstein running into the alley behind the bar, follow him, take one of the paint cans that Jennifer uses and use it on the wall.