6/11/2023 0 Comments Rambo video game nes downloadSurprisingly enough, first $18 bytes of the password decipher routines are different just in one byte, but only in the US version, all these bytes being XORed on each other will give you exactly $00, allowing to pass the control sum check. One of the side effects of this is that the US version introduces a bugged password by entering all 0s, which doesn't work in the Japanese version. Although these routines are the same between versions, the following data is a little bit different which causes different password permutation as well as partial incompatibility between passwords (some portions of the table match just fine, so not all passwords are incompatible). The game uses a decipher routine machine code along with following data as a xor table to cypher and decrypt the password. The password system was changed a little bit between versions, not only in terms of character replacement, but also in terms of input data permutations. The US version still has the Japanese hiragana and katakana text. Trautman slipped in possibly the first swear into an US NES game.
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