Killer Loop Game System: Sony Playstation Cheat Category: Cheat Game Company: Crave Game Category: Action Hint, Cheat, Walkthrough:   Killer Loop =========== H&K CLASS 2: At the main menu, hold Start and press Down, Left, Up, Left, Down, Right, Up, Left. H&K CLASS 4: At the main menu, hold Start and press Down, Right, Up, Left, Down, Left, Up, Right. PULSE CLASS 2: At the main menu, hold Start and press Up, Left, Up, Left, Down, Left, Up, Left. PULSE CLASS 3: At the main menu, hold Start and press Down, Left, Up, Left, Down, Right, Up, Right. PULSE CLASS 4: At the main menu, hold Start and press Down, Left, Up, Right, Down, Right, Up, Left. REAC CLASS 1: At the main menu, hold Start and press Down, Left, Up, Right, Down, Left, Up, Right.