収録内容 SIDE A 1. THE RULER / TROUBLE (MAIN) 2. THE RULER / TROUBLE (CLEAN) 3. THE RULER / TROUBLE (INST.) SIDE B 1. IRONMAN & THEODORE / LATE NIGHT ARRIVAL (MAIN) 2. IRONMAN & THEODORE / LATE NIGHT ARRIVAL (CLEAN) 3. IRONMAN & THEODORE / LATE NIGHT ARRIVAL (INST.)