change category rhythm_game (283) -> invalid
create implication playing_rhythm_game (0) -> playing_videogame (5)
create implication rhythm_game_mechanics (0) -> gameplay_mechanics (9844)
create implication rhythm_game_machine (0) -> arcade_machine (661)
create implication rhythm_game_controller (0) -> game_controller (8334)
create implication dance_pad (24) -> rhythm_game_controller (0)
remove implication guitar_controller (26) -> game_controller (8334)
create implication guitar_controller (26) -> rhythm_game_controller (0)