In Terry's Big Adventure, you guide the titular protagonist towards his home while collecting mushrooms and defeating enemies using his trusty yo-yo. Sounds familiar? If it helps your case, the mushrooms only increase your score here...
Hidden Message#
Loaded at $6D03 in memory:
THIS PROGRAM IS FOR YOU, MOM. I WILL LOVE YOU ALWAYS.....TBA C64 V1.0
(Source: Bacchus @ FAIRLIGHT)