Está muito bom e ainda é um jogo é bem desafiador!!!
Só me senti incomodado em atacar usando o CTRL.
Uma observação, em uma das vezes que eu morri apareceu esse erro:
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FATAL ERROR in
action number 1
of Step Event0
for object obj_player:
Unable to find any instance for object index '13' name 'obj_par_enemy'
at gml_Object_obj_player_Step_0
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stack frame is
gml_Object_obj_player_Step_0 (line -1)