+ int bd_nut_content; // BD nut contains the specified game element
+ int bd_hammer_walls_break_delay; // BD hammer time for breaking walls (in BD frames)
+ boolean bd_hammer_walls_reappear; // BD hammered walls are reappearing after some delay
+ int bd_hammer_walls_reappear_delay; // BD hammer time for reappearing walls (in BD frames)
+ int bd_num_skeletons_needed_for_pot; // BD skeletons amount must be collected to use a pot
+ int bd_skeleton_worth_num_diamonds; // BD skeleton collected is worth this number of diamonds
+ int bd_expanding_wall_looks_like; // BD expanding wall looks like this other game element
+ int bd_sand_looks_like; // BD sand looks like this other game element
+ boolean bd_creatures_start_backwards; // BD creatures start moving in opposite direction
+ boolean bd_creatures_turn_on_hatching;// BD creatures change direction after hatching
+ int bd_creatures_auto_turn_delay; // BD creatures change direction after delay (in seconds)
+ int bd_gravity_direction; // BD engine initial gravity direction
+ boolean bd_gravity_switch_active; // BD engine gravity switch starts in active state
+ int bd_gravity_switch_delay; // BD engine gravity change delay for switch (in seconds)