This highly depends on the game, but here is an example:
create:
self.hp = 100;
step:
if irandom(90) = 1
instance_create(self.x,self.y,obj_bullet);
if self.hp <= 0
instance_destroy();
Obviously, you would need to add some kind of attack to reduce its hp.
This is a pretty generic question. Simply have another object, "obj_boss", and have it execute all the boss's events.
for make a game in game maker. go to. www.youtube.com/watch?v=6pGOgjZCOBo
How DON'T you make a health bar in Game Maker.
It depends what sort of game you want to make. RPGMaker can make only RPGs but it's much easier than Game Maker.
Any game maker can create a ninja game. Most choose not to.
You could use game maker. Download it by typing download game maker. This will be a freeware
download game maker 8.1
You kill people
It depends on what you want to make.
Make a game... and it depends on what type of game that requires the certain expertise.
www.yoyogames.com/make
Game Maker contains a fully functional programming language (GML, or Game Maker Language) which allows you to create game engines, games, applications, utilities, etc...
Use Timelines or Alarms I'm working on a cutscene maker, so it is easier to make