Level 'Extra', play as Alien, level 'Zero'
Effect Code Unlocks level "Extra" and the boss Alien In title screen press: Up, Down, Left, Right, Down, Up Unlocks level "Zero". In this level if you hit your opponent only once you will beat him After you do the code above press (in title screen): Up, Up, Down, Down, Left, Right
Contributed By: ANTIDEUS.
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