Nice website and account. This sort of basic ROM manipulation was a huge gateway into low-level programming for me and many others. For an aspiring teenage programmer, it is immensely satisfying to be able to open a ROM in a hex editor and get Marin to greet Link by saying your crass phrases of choice at the start of Link's Awakening.
Surprised the start of the article neglects to mention the biggest hidden feature of the game, though: the fact that it also contains a hidden port of "The Lost Levels" (unlocked after getting a high enough score in the main game, IIRC). Super Mario Bros Deluxe is a stellar example of a great port; it's clear that a huge amount of thought and effort went into making a high quality version for the GBC. Glad to see it getting a bit of attention in this day when ports of old games are used as lazy cash grabs, inferior to the original releases.
