These are all of the boss guides in new super mario bros. DS.
- Bowser: Jump over bowser and press the big button.
- Mummipokey: When he goes back to the ground and comes out short, jump on him. Continue that 2 more times.
- Cheapskipper: Jump on him when he comes up, do that 2 more times to win.
- Mega Goomba: When he comes, go to the middle gap and press the button. then go to the oposite side to him and go on a platform, when he comes to you, jump on him, do that 2 more times to win.
- Petey Piranha: Petey will start flying so run a way from him untill he comes back down and jump on him, do that 2 more times to win.
- Monty Tank: jump on the monty when his head pops out. but beware of bullet bills and the tank will grow with every hit.
- Dark lakitu: jump on him when he swoops down jump on him and avoid lightning strikes and spineys.
- Dry Bowser: Same as bowser but with no platform.
- Bowser and Bowser Jr: defeat Bowser Jr and then wait for big bowser to jump then run under him and press the button.