Dash Galaxy in the Alien Asylum Cheats
Hold Up/Left and press A + B + Select at the title screen. Use Up or Down to select a level and press Start to begin game play.
Hold Up/Left + A + B and press Select at the title screen. Press Up or Down to change the level number.
In this game you can take a step past the earlier levels by using this special cheat. On the title screen, press and hold the 'A' and 'B' buttons, as well as 'Select' and Up and to the Left on the pad all at the same time. This will allow you to choose which level you would like to start on. When the appropriate level appears, press 'Start' to begin play on that level.