Insector X [Model TFC-IS-5900]

* Secret message: Enter the OPTION MODE menu, then move the cursor to the EXIT option. Press Right 35 times, then press Left once. The message, PRGD. BY JYOJI HIRAYAMA will appear.

* Level select and No-Hit Mode: Enter the OPTION MODE menu, then move the cursor to the EXIT option. Press Right any number of times except 35, then press Left. At the BOY/GIRL select menu, press Up to cycle through the levels, and Down to toggle HIT/NOT mode, to play with normal lives, or invincibility, accordingly.