Rygar (NES)

Rygar is an early adventure game for the NES that was very loosely based on an arcade game of the same name. It included both sidescrolling and overhead areas to explore.

Unused Text
A text string "PASSWARD" is the only remnant of a disabled and unused menu item at the title screen of the Japanese version. It doesn't appear that any other references or ways to activate a password were left in the game ROM. 00019050: 48 13 0F 14 48 50 10 00 50 00 05 10 0D DA DB C8 .......y.y~..STA 00019060: D9 DB 08 10 4F 55 55 00 08 12 0F D7 C8 DA DA DE RT.....y...PASSW 00019070: C8 D9 CB 00 A6 0F E0 03 B0 06 A5 0F C9 1E 90 01 ARDy..Y|)...B..z

Butterfly


Two frames for a butterfly can be found in the ROM, but it's not used in the game. Its purpose is unknown.

Dragon


The ROM also contains sprites for an unused dragon enemy. It looks as though it would sit in a pit and rise up with its mouth open.

Shadow Monsters
The enemies in Ligar's Castle, the game's final area, have a palette applied that makes them one solid color, so they appear only as shadows. One of the enemies is a shadow version of the boss, Dorago, but the other two, a robot and a spider, are unique to this area. Their true forms can be seen by viewing the ROM in a tile viewing program.

Regional Differences
The ending text has a different wording.

Argos no Senshi has a few different music tracks.