Time Attack Mode: On the character select, go on Kamui, then enter: ↓ ← ↑ ← ↓ ← ↑ ← ↓ → → → → ↑ then press C & D simultaneously.

Play Ranmaru & Nobunaga: For player 1: go on Kamui in the character select screen, then enter ← ↓ ← ↑ ← ↓ ← ↑ → ↓ → ↑ then press C & D simultaneously. For player 2: go on Sasuke, then enter → ↓ → ↑ → ↓ → ↑ ← ↓ ← ↑ then press C & D simultaneously.