HERE : mediafire.com/download/6nxdszz25y6febk/jump_simulating_and_spawning_in_groups.capx
Please make the enemies jump to the player when they are near to him (the player) and to make the enemies spawn in groups too
Did you really download game-creation-software to have someone else make a game for you?
Like I said, If you re-download the capx from the link I posted,
This one (If scrolling up is difficult),
you will find the answer to the jumping..
To spawn in groups I'd suggest creating a variable, setting it to choose(1,5) and repeating the create action variable times adding or subtracting from the creations x-position (depending on "left" or "right") the amount of distance you'd like between your enemies..