Most Overrated Video Game characters

Shadow the Hedgehog :V
 
Geno

Shadow the Hedgehog

The Koopalings

Petey Piranha

Diddy Kong

King. K Rool

Marx Soul

Yoshi, the champion of bland-ness and annoying-ness
 
I was going to mention Waluigi, but for some reason I didn't.
 
I'm not going to bother with Mario characters here because this isn't in the Marioverse and there's a thread for that there.

At the top of my head, Groose and Proto Man, but I'm sure there's more.