I don't know if this is a bug or an intended behavior, so here's the thing:
Sometimes when I kill the alien a green light appears next to the smoke in the chupacabras, sometimes it does not. Also in the radio there are some code that give random messages in the phone rather tha predefined ones
I got this message from the last moster (wisp) while trying to switch a the first monster:
___________________________________________
############################################################################################
FATAL ERROR in
action number 1
of Step Event0
for object obj_radio:
Unable to find any instance for object index '55' name 'obj_wisp'
at gml_Object_obj_radio_Step_0
############################################################################################
--------------------------------------------------------------------------------------------
stack frame is
gml_Object_obj_radio_Step_0 (line -1)
Also there are in the radio 2 numbers generate random phone calls instead of a predefined call, like the other 8 calls.
Also some of the calls are not that clear about what the clue is about.