Sake Bombing in downtown Montreal!?
Hmmm, I've never heard of anyone sake bombing in montreal restaurants. (Though I have witnessed Irish car bombing recently at Au Pied de Cochon! hehe.)
If all else fails you could get yourself a nice sushi platter from Sushi Volant and have a sake bomb party at home.
Are you looking for good sushi downtown or something else? If so, you might try Zen-ya:
I confess didn't know what sake bombing was until I Googled it just now. Sounds.... interesting. I don't know if it requires a particular type of atmosphere in the restaurant in question - if it does, could you please clarify what you're looking for?