@othus12: Yeah.. bounties are not power-levels, otherwise Nami would and Ussop would be above Chopper or Robin could beat Franky. Remember that Crab claw pirate with a bounty in the hundred millions? The guy Hordy Jones demolished? He displayed nothing of that level yet he had a high bounty anyways. Bounties are just about who caused the most damage and posed the biggest threat to the government or the people. You can get a huge bounty just from slaughtering a village full of innocent civilians or taking over a protected island ect. Just looka t the reason Robin has such a high bounty. They are not a scale of who is more powerful considering you have powerful characters like Eneru who don't even have a bounty (Unless you count Oda's input).
The only Supernova I see Bellamy comparable to is... Apoo maybe but I don't see Bellamy surprising Kizaru the way Apoo did. Arlong was already enough of a threat that Kizaru needed to be called, Bellamy did not show that level of hype, hell the only people that even knew about Bellamy were the residents of mock town and that was only because he had killed a famous pirate there during the poker game. Arlong's name was know far before that, he was the face of the Fishman pirates before Jinbei.
I don't see him blitzing anyone when Arlong's shark torpedo is about as fast, take into account the will be near or in water as well so unless Bellamy goes in for a suicide blitz I don't see him taking them out so easily. Besides who does he go for? Arlong, hachen, Chu, Kurobie, the sea cow, or the fodder? Because he ins't fast enough to blitz everyone at once.