nice spritework and a interesting concept of fighting game controlled time-trail game. i played with a controller so i don't know what 3 is as an input, but it doesn't matter because an error happened.
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ERROR in action number 1
of Alarm Event for alarm 2 for object obj_next_room_1:
Pop :: Execution Error - Variable set failed stun - read only variable?
at gml_Script_anon@4659@pState_hitStun@pState_hitStun
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gml_Script_anon@4659@pState_hitStun@pState_hitStun (line -1)
gml_Script_anon@177@StateMachine@State_machine
gml_Object_obj_next_room_1_Alarm_2