Pachi Com (NES)/ja

パチコン テレビゲーム初のパチンコを題材にしたゲームである. 後にファミコンディスクシステムにも移植された. MSX版も参照.

Credits
There are some hidden credits and copyright information in both versions of the ROM. They appear at address in the Famicom version and  in the FDS version.

Y.S's Rant
Right after those credits, at, begins a pretty angry rant from one of the game's programmers, which was removed from the FDS version of the game. You can read the original, undivided version on the notes page.

This hidden message can be found with any hex editor. Almost five percent of the entire ROM (2.05 kilobytes out of the 41 kilobyte ROM image) is taken up by this otherwise inaccessible message. The message is recorded in romaji and reads like this:

Interestingly, writing the bytes the programmer mentioned, after converting from NES memory mapping to the iNES file offsets ( &rarr;,  &rarr; ) disables the (quite frankly) annoying beeping sound that constantly plays during the game, indeed letting you actually hear the balls and game sounds. Why this annoying change was forced upon the game is anybody's guess, but it's a fairly clear case of executive meddling.