Most disappointing game you've ever owned?

[DieAppleDie]

Starwing was awful
Starfox was great fun but short and simple
Starfoz Adventure is the best in the series

if two games are a great frachise one of the two being awful
and releasing a pretty good adventure means turning it into mediocrity, i must be mentally ill ,,,,,,,,,,,,,,or u might be WRONG!