okay, I am now at the skull dungeon. somehow trial and errored my way out of the part before.
made it to the boss there but as soon as the fight is about to start, I get this error:
############################################################################################
FATAL ERROR in
action number 1
of Other Event: User Defined 1
for object obj_drake:
Variable obj_drake.spr_drake(100411, -2147483648) not set before reading it.
at gml_Object_obj_drake_Other_11
############################################################################################
--------------------------------------------------------------------------------------------
stack frame is
gml_Object_obj_drake_Other_11 (line -1)
called from - gml_Object_obj_drake_Step_0 (line -1) - <unknown source line>
I dont remember where exactly but somewhere along the way I found another invisible barrier thing. :-/