I'm just curious on your opinion. Lately I been finding some articles of classic games that have varying degrees of difficulty between the regions. Some of them are either unintended bugs by accident or intentional to the localizer. There is more than I dare try to name, but some of may be well known by now or even more scarce.
- Mega man 2 = Title screen provides Normal or Hard mode, normal mode is easy mode. Hard mode is default in Japan.
- Contra Hard Corps = International versions have 5 continues, Japanese version has a live bar that can take three hits before losing a life and unlimited continues. (Also has cheat codes not accessible internationally)
- Battletoads = The Japanese version is made easier by increasing the starting lives to 5 by default and stages made easier by reducing number of enemies, slowing down speed stages like turbo tunnel and surf city.
- Super Mario Bros.3 = Japanese version is slightly more difficult than international versions, one big difference is that internationally if you had a second stage power up from Super mushroom, you return to the previous Super Mushroom form, in Japan, you turn small instead
- Streets of Rage 3 = International versions are much more difficult than the Japanese version
- Metal Gear Solid 2 = European Extreme (Need i say more?)