I think Combo Killer is glitched for me. I've received a 18x combo bonus on both Vini Vidi Vici and Downtown Dash and havn't been able to unlock it.
EDIT : Wouldn't you know it, with 10 min. of me posting this, I score a 19x combo bonus on Downtown Dash and get the achievement. Thank you for the suggestion Sir Simon Mally
Last edited by Simlaurel; 01-27-2011 at 12:32 AM.
Reason: Murphy's Law