Insector X for Famicom was released on September 21, 1990 in Japan.
This is the 33th title published by Taito on the Famicom.
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TIPS AND TRICKS
* 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.