Pretty much all of the bosses. (correct me if I am wrong)
Bowser could be FIGHTING the final boss, too. (ex. Mario and Luigi, Bowser's Inside Story, etc.)
your mom and you
Bowser Jr. and Bowser. I'm so mad at them at them that I just wanna crush their bones!
The major bosses at the end of each world are, in order,: GobblegutBowser (first)MegahammerBowser (second)Bowser J's Boom BunkerBowser (final boss)
I believe there are 19
they are on all 6 ( domes ) of them but they are on the bosses like bowser and bowser jr. well they are in shape of a bowser head ( big head get it :) )
Those faces show where you have to go to beat the bosses.
Yes. bowser is once again, the main antagonist. there are also many other returning bosses, including( but not restricted to) bowser Jr. Shadow Mario (as a basic enemy) King Whomp (from super Mario 64) and many others.
Sorta because the minion he has he bosses them around like a pet so yea so Bowser kinda has a pet
yes the koopalings along with bowser and bowser jr appear as bosses in the game.
You have to be Bowser and get the Smash ball. It's Bowser's final smash.
... He is already unlocked when you start the game... unless you mean Giga Bowser. Giga bowser is only playable as a final smash for Bowser.
Giga Bowser is the final smash of Bowser so strictly speaking yes.