End bosses is an events category in JCS, consisting mostly of end bosses that can be used in levels. Regular non-boss baddies bosses are found in the Bad guys category. One event in this category, Activate Boss, does not create a boss event, but activates the end-boss part of the level. Also, one of the end bosses (the Rocket Turtle boss) has been misplaced into the Bad guys category.
This is a subcategory in JCS.
Eat your lima beans, Johnny.