Gaming

Wario Land 3 & 4
Advance Wars
Golden Sun
Dragon Quest 3

Metroid 2, because there's a reason there have been so many fanmade remakes of it...

But I also dug Ultima Runes of Virtue 2... If you ignore the canon. Superior to the SNES version IMO.

Mysterium was also nifty.

That strange Lord of the Rings turn based strategy game.

Mole Mania is pretty fun. And Gameboy donkey Kong is pretty fun, and it's way more than just an arcade port. It's has way more levels and the format is different. It also has a pretty fun move set.

Snood for GBA. Some might remember the PC version of Snood.

Sonic Advance for Gameboy Advance...

Runner up is Super Momotaro Dentetsu II. A game that makes zero sense if you can't read Japanese, but it is very hilarious if you can and are familiar with the culture. In a nutshell, take the absurd length and buying property element of Monopoly, then the bullshit luck-based elements from Mario Party, mix together with a healthy dose of recreational drugs, and you get this game.

Trailer, Bit of Gameplay... Funny thing is they announced their 24th instalment in the series this year for the Nintendo Switch:

shantae for gbc! its a really cute sort of metroidvania thing.

Kirby's block ball was a great Gameboy game. I remember one I liked a lot called lock n' chase, name could be wrong but I'm sure it's close

The Lord of the Rings: The Third Age for GBA, I had so much fun playing hotseat with my friends.

Also, Tetris, Battlebots and The March of Penguins.

I have been playing Motocross Maniacs off and on for 30 years or so. Back when we had a magazine rack in the bathroom we eventually just left the Game Boy sitting in there.

I was given a copy of Azure Dreams for the Gameboy Color, this thing had no picture on the cartridge anymore and was a piece of paper with the word Azure Dreams written on it. I remember playing the absolute shit out of that game. I still have it, but haven’t played it in decades.

Golden Sun and its sequel, Golden Sun: The Lost Age. Easily my two GBA favourites.

I loved kid Icarus. Played the shit out of the game when I was a kid. That a Kirby's Dreamland were my two favorites that I can recall right now.

Here's a short list of my favorites:

• golden sun
• fire emblem

EDIT: ... I misread the post. Updated to show only Gameboy games. *facepalm

So I grew up playing James Bond 007 on my OG Game Boy. It wasn't the greatest game in the world but it provided hours of fun on car trips when I was a kid.

If we're allowed GBA then Zelda Minish Cap or Lego Star Wars.

Advance wars, I just picked up the reboot for the switch

Fire Emblem 7 a.k.a The Blazing Sword

Pocket Bomberman (GBC), Wario Land (GB), Wario Land II (GBC), Bubble Bobble Old and New (GBA), Donkey Kong '94 (GB), Kirby's Dream Land and Kirby's Dream Land 2 (GB), Kirby's Nightmare in Dreamland (GBA), Kirby and the Amazing Mirror (GBA), Dr. Mario (GB), Tetris (GB), and Tetris DX (GBC), Mario's Picross (GB).

Final fantasy Tactics Advance and Fire Emblem the Sacred Stones

The Urbz: Sims in the City for the GBA (and also the DS).
This is such a hidden gem on the GBA and my favorite GBA game I had. Had great music as well!

My favourite GBA game was Metroid Fusion, I wish I still knew where it was