20. Pokémon FireRed and LeafGreen (GBA)

Pokémon FireRed and LeafGreen were Game Boy Advance remakes of the classic games that started it all, Pokémon Red & Blue. Yes, the Game Boy originals were known as Red and Green in Japan, because reasons.

Did Pokémon really ever get better than this? That's up for debate, but vastly updated visuals, the ability to connect to various other Pokémon games to collect over 350 of the critters, and an enhanced user interface were just some of the upgrades offered in this 32-bit revamp. For players intimately familiar with the Kanto games, this was the first opportunity (of many to come, of course) to indulge in some nostalgia and catch the original 151 all over again. Who could possibly resist?

Watch out, Metapod. Or should we call you... Metapoo? Ah, the comedy! Happy days.

19. Advance Wars 2: Black Hole Rising (GBA)

Coming a couple of years after the original GBA entry in Intelligent Systems' Wars series, Advance Wars 2 might not have shaken things up a whole lot, but it offered a slew of nice additions, as well as a fun new campaign to work your way through. Certain COs were tweaked to be less overpowered (Max, anyone?) making this a more balanced game than its predecessor. It's arguably more of the same, but when the first course was so delicious, who wouldn't want a second helping?

18. Harvest Moon: Friends of Mineral Town (GBA)

Harvest Moon: Friends of Mineral Town might be available on Switch (carrying the Story of Seasons branding in the West nowadays), but the GBA version is still a good pick-up for cultivating types who enjoy that core Harvest Moon portable gameplay with 16-bit style visuals. Additional fun and secrets outside land-working are present, but the game isn't overwhelmed with the twists or gimmicks we've seen introduced in more recent entries to 'keep things fresh'. This remains a great jumping in point for anyone new to the series — it's undeniably lacking in some areas by modern standards, but it's still got charm to spare.

17. Super Mario Advance 3: Yoshi's Island (GBA)

With its deep exploration-based gameplay and gorgeous art style, Yoshi's Island is still a joy to play all these years later — it's a platformer with considerable depth and challenge. Exploring is made fun thanks to Yoshi's egg-based abilities and collecting everything will require a gargantuan effort, but it's never less than immensely entertaining (provided you can put up with Baby Mario's whining). The smaller canvas of the handheld screen inevitably reduces the impact of the SNES original's incredible pastel-shaded world, but this remains one of Nintendo’s 2D platforming finest efforts. If you've never played it before (or have a hankering to go through it all again), the GBA version is a fine one.

16. Advance Wars (GBA)

The first Advance Wars is a turn-based tactical classic. It might not have the huge amount of COs and new units that its sequels would bring, but as a result it feels more balanced and approachable; it generally feels very fair, even if you lose. And in those rare instances that it risks infuriating you, the immensely charming graphics and top notch music keep a smile on your face. We love a bit of Fire Emblem, but we've had our fingers crossed for years that Advance Wars will return some day. Keep 'em crossed.

15. Golden Sun (GBA)

Golden Sun is a fine RPG, perfecting the classic formula whilst introducing unique mechanics of its own. An intriguing setting, likeable characters, and gripping story are the bread-and-butter of any good RPG, and Camelot doesn't disappoint on those fronts. The first few hours are a slog, but stick with it and you'll be rewarded with a rich, deep RPG that desperately deserves a modern-day instalment.

14. WarioWare, Inc.: Mega Microgame$! (GBA)

The microgames on offer in WarioWare, Inc.: Mega Microgame$! may be simple affairs, but the frantic, fast–paced and challenging experience that results from knitting them together in quick succession is incredibly addictive, and Wario's patented brand of mania is well suited to a handheld. It isn’t the longest game, and beyond the single-player mode there isn’t much else to do, but it’s stuffed full of magical, creative moments, not to mention an abundance of that classic Nintendo nostalgia and charm.

13. Fire Emblem (GBA)

Also known as Fire Emblem: The Blazing Blade, this was the very first entry to come to the West and is actually a prequel to the Japan-only Fire Emblem: The Binding Blade which starred series stalwart Roy. The Blazing Blade (or just plain old Fire Emblem if you prefer) follows Roy's old man Eliwood and served as a thoroughly decent introduction to the series for us Westerners, the majority of whom had been wondering about the series after seeing Roy and Marth as fighters in Super Smash Bros. Melee.

12. Mario & Luigi: Superstar Saga (GBA)

Mario & Luigi: Superstar Saga's lengthy main adventure felt pretty unique back in 2003. It was only the third RPG-style Mario adventure, but developer AlphaDream's Mario debut hit the jackpot right away with its addictive battle systems and dual brother gameplay. With plenty of side quests to seek out and minigames to replay for high-score chasers, Mario and Luigi's amusing animations and "voice acting" played into the game's great sense of humour and it hasn't lost its ability to raise an ear-to-ear smile.

11. Golden Sun: The Lost Age (GBA)

Even though Golden Sun: The Lost Age plays much like any standard RPG, there is something special about it. Even with its lack of structure towards the beginning of the campaign, its accessible, engaging nature keeps you wanting to play and experiment. The Lost Age is very much a 'Part Two' — a continuation of the first adventure — but builds, modestly, on almost everything from the original Golden Sun: a longer campaign, extended Djinn mechanics, greater challenge, clever puzzles, and minor graphical improvements. Newcomers would do well to start with the first entry, as the game does take for granted that you know the basics, and the plotline will make little to no sense – at least initially. However, for those who've played and enjoyed the first instalment, this concluding chapter is a real no-brainer.