Without Japan, where would our beloved hobby be? Just think about that for a second.
Japan is the home of hugely influential developers and publishers like Nintendo, Sega, Square Enix, Capcom, Konami, and Taito.
Those players haven't had quite such an effect on mobile gaming, with American companies Apple and Google holding the keys to the kingdom. But Japan still weighs in with some distinctively excellent games.
Which Final Fantasy games is best? It's usually a choice between VI and VII, but on mobile we'd have to go with IX. Not only is it arguably the last great classically styled entry to the series, but it's also a brilliant conversion job.
HAL Laboratory is usually hard at work making games for Nintendo consoles, but its first mobile game is an absolute triumph. Part Time UFO is a brilliant take on arcade grabber games, with a range of inspired tasks and bags of charm.
Oddball DS JRPG The World Ends With You: Solo Remix finds a comfortable second home on mobile. The game might be old, but its modern day Shibuya setting and left field touch-driven mechanics ensure that it still feels fresh as a daisy.
This is the first of the Layton games to be made with mobile at least partially in mind from the start, and it shows. Layton's Mystery Journey offers a slick series of touchscreen puzzles, bound together with the usual Layton panache and a brand new protagonist.
Unlike some of the games we've already listed, Chrono Trigger isn't a perfect port. However, the core game remains one of the finest JRPGs of all time, with a stunning time-bending plot and real-time(ish) battles.
A finely judged mobile spin-off from the beloved Shin Megami series. You get the same demon-collection impetus and anime-inflected presentation as the core series, but achieved with a striking sense of immediacy.
Forget Sonic 4. This port of arguably the finest Sonic game ever (though probably the least played) is all you need, with super-slick platformer gameplay and the same ambitious time-travel mechanic that made the original so special.
A port of one of Square Enix's almost-forgotten RPG gems, Valkyrie Profile is an oddball delight. Mixing side-scrolling platforming with deep combo-driven combat and a massive dose of Norse mythology, it's pretty unique.
GungHo has produced a stylish puzzle-platform hybrid, which started out life on PS Vita. Your supernatural protagonist must guide a princess through a series of levels by pushing boxes and flipping switches.
This high-grade riff on the Clash Royale formula adds JRPG trappings to some familiar real time multiplayer battles. It's a far more involving - and technically impressive - experience than your average card-based MOBA.
Dragalia Lost is Nintendo's first original mobile IP, which makes it a pretty big deal. It's not massively original, but it is a particularly polished example of the ARPG format, with a rich fantasy world and satisfying swipey combat.