Every boss battle in New Super Mario Bros. This includes all of the boss fights on the Tower and Castle stages. This video also includes the final boss, ending and credits for the game. I realize these bosses can be beaten in a matter of seconds, but I wanted to at least show what they do so I played them more conservatively. Here are the times for each boss fight:. 00:01 World 1-Tower (Bowser Jr.). 00:28 World 1-Castle (Bowser). 01:08 World 2-Tower (Bowser Jr.). 01:35 World 2-Castle (Mummipokey). 02:28 World 3-Tower (Bowser Jr.). 02:56 World 3-Castle (Cheepskipper). 03:32 World 4-Tower (Bowser Jr.). 04:22 World 4-Castle (Giant Goomba). 05:06 World 5-Tower (Bowser Jr.). 05:39 World 5-Castle (Petey Piranha). 06:38 World 6-Tower 1 (Bowser Jr.). 07:07 World 6-Tower 2 (Bowser Jr.). 08:02 World 6-Castle (Monty Tank). 09:10 World 7-Tower (Bowser Jr.). 09:47 World 7-Castle (Lakithunder). 10:39 World 8-Tower 1 (Bowser Jr.). 11:38 World 8-Castle 1 (Dry Bowser). 12:14 World 8-Tower 2 (Bowser Jr.). 13:13 World 8-Castle 2 (Bowser & Bowser Jr. Final Boss). 14:51 Credits (Top Screen Only).