Bowser is just about in every Super Mario game.
Yes, one: Mario and Luigi in Bowser's Inside Story.
The games have no relation.
Im going to have to say Bowser. Yep.
Bowser looks the same as he appears in the newer games.
unlock him, or in some games fight him
The answer is Bowser, Eggman, Bowser Jr, Metal Sonic.
You dont see peach kissing bowser but you do see peach kissing mario in one of the games.
Unfortunately you cant get a metal bowser unless there is a cheat to, try cheatsguru.com for cheats to your games :)
bowser, egg man, bowser jr, metal sonic its on the back of the sign after the other machine in that town
In all of the Mario themed games, they seem to be pretty closely matched, but Mario always ends up defeating Bowser. In other words: Mario > Bowser
you have to beat them (final boss) then bowser Jr. and metal sonic (after beating eggman & bowser and after you complete all their challenges ) then beat eggman and bowser again the they will "follow" you.
from the left, bowser eggman, bowser jr., metal sonic.