well i know something about letting enemies spawn in MP
first you need a normal MCE to let it atleast "happen" in game.
which is: Numberforpixels|MCE event
Belt right

1.of course it can also go to the left aswell. you should download a Good JCS.ini like Evilmike's JCS.ini on j2o
(not needed but easier to explain)
then you need to search in the gameplay scene and click on the Multicombo event.
fill the labels in, withouth generating. the event you want and any delay. and fill it in the place where the sketch says "MCE event".

2. the numberofpixels means how many pixels the event goes between tiles. for example. a tile in jj2 is 32x32. if you set event 48. which is the exact number between 2 tiles (64:32) (32:2=16) (32+16=48) then you get the event in the middle of those 2 tiles aside of the MCE event. this event must be generated. the delay doesn't affect anything however (the delay in the Multi combo event is the thing jj2's system counts on)

3. place a belt left or right to the direction to the multi combo event.


when you've done this then you're event is done. the meaning of MCE's is to bring it in different sides of width on pixels. but in this form it can also let SP events work in MP.
however. because you chose enemies, there is 1 issue left. and that is that MP doesn't show of the sprites.
you need SOMEWHERE in the level a ambient lightning (don't ask why) with the right sample. in other words. the right settings in a ambient lightning shows of certain event sprites. i don't have a correct list of which sample is needed for which sprite however. you just need some.

4. when you've done this then the event works and everything shows of correct. there is only 1 bug with enemies in MP and that's that the Host can't touch the enemies when in Team 1 (red) which causes a access violation. but karrot shire is treasure/coop mode anyway and most time a dedicated server. so no worries.

(don't blame my (-)(-)(-)(-)ed up english, i typed this very fast)