Press Start to pause game play, then press B to advance through any
level that was previously played.
Successfully complete R-Type DX using ten or less credits. Then,
press Select + A during a R-Type Standard type game.
Hold B during game play and power the Game Boy off and on while
continuing to hold the button. The game will resume at the start of
the last level played with five lives but no points or power-ups.
Successfully complete the game in R-Type I Enhanced, R-Type II
Enhanced, and R-Type DX. Press Right at the game type selection
screen until the De Souza drawing editor option appears. Then,
press Start to begin.