The GBC was home to a really nice number of good games. Unfortunately, a lot of them were overlooked either because they lacked recognition or because they came out in the wrong time. Some people would argue the GBC itself came out in the wrong time.
Regardless where you stand, one thing that can't be denied is that the GBC was a safe ground for experimentation. From the adventure elements thrown in sports & puzzle games like Mario Golf, Mario Tennis, Mickey's Racing Adventure, International Track & Field and Magical Tetris Challenge, to connectivity aspects of the Zelda Oracle games. From accelerometers in Kirby's Tilt'n Tumble to rumble features in Pokemon Pinball.
The following is a nod to the overlooked titles, the ones that were ignored as their uniqueness stood untouched. Hopefully not for long.
Bomberman Quest
Developer: Hudson Soft
Plays like: Neutopia + Link's Awakening
What can I say? It's Bomberman taking a piece from Neutopia and Link's Awakening (just look at that map). The game is a simpler take on the Adventure genre and manages to deliver the necessary goods to keep it over the average crowd, yet right under the great ones.
Bomberman's usual repertoire is here: remote bombs, shoes to walk faster & to kick bombs, plus a lot of new power ups such as jump boots, armor, lanterns and a variety of bombs. Every classic Bomberman enemy is also here, they usually say a few words too before you blast them to oblivion.
There's a sequel for the Game Boy Advance called Bomberman Tournament, but it wasn't really on par with this one.
Blade
Developer: Hal
Plays like: Double Dragon + Mighty Final Fight
If you really need an excuse to play the game, just look at who made it: Hal Labs (of Kirby fame).
It really isn't an outstanding title, but it looks and plays good enough to let you know it's not another crappy licensed title with horrible controls. In some stages all you need to do is shoot at all the enemies, while on the others you play Double Dragon style with a touch of Mighty Final Fight. It's a simple game, but entertaining enough if you think you've played everything the GBC had to offer.
International Track & Field
Developer: Konami
Plays like: Track & Field + Training & Love Simulator
This one came out of left field. Konami managed to successfully mix a classic Track & Field game with a training and love simulator. If you want, you don't have to play the story mode and can just concentrate on the classic T&F game play. But if you do, you'll play as a student training for the annual Olympics in his school. You'll have to make up exercise and rest routines (really easy to do) which will last for a week. The exercises are automatic too, so you don't really have to race around a million times. Train too hard or rest too much and your abilities will diminish, you'll have to find a balance to keep your abilities on top shape. Occasionally, female trainers and friends will call you to hang out, eventually the might fall in love with you if you go out of your wait to be with them (such as calling them or skipping practice to be with them).
Eventually several events and tournaments will take place (usually on Sundays) and will test your button pushing powers. If you want you can skip them by staying asleep or going out, but you don't want to do that.
I managed to reach the annual Olympic and I lost, but it didn't matter because you started training for the second year. I don't know if you beat the game by winning the Olympics or if you have to play for several years before reaching the end.
Merlin
Developer: RFX
Plays like: Little Samson + Ghosts n Goblins
Merlin. Made by an obscure European company and published by an evil corporation trying to take over the world (EA).
It plays like a mix of Little Samson (attacking and movement) and Ghosts n Goblins (weapons, stages and enemies), the game is really straight forward and simple, which is a good thing if you just want to have a nice time.
You pick different powerups that make your shots stronger, a defense armor that protects you from 1 hit (like Arthur, but without a sprite change) and if you kill enough enemies, you gain "levels" (out of 3) that make you stronger.
Looney Toons Collector: Alert!
Developer: Infogrames
Plays like: A vewwy vewwy simple Zelda game.
Wow, this has to be maybe the ONLY good game Infogrames has ever made.
This game really impressed me (as much as a simple game can impress), the sprites are pretty, the controls are good, every WB character in existence is in the game (you can even rescue them if you want, hence the "collector" part of the title) and it has enough variety to keep you playing.
You'll visit deserts, several towns, inns, a haunted house, islands, underground rabbit holes and you'll pick up many items to help you on your quest.
There's a sequel too, called Marvin Strikes Back and it's just as good. In fact, one might call it a "second quest" based on the similarities.
Mickey's Racing Adventure
Developer: RARE
Plays like: RC Pro Am + Adventure elements.
Say, you remember RC Pro Am for the NES? This is his brother and he will kick your ass.
Don't be fooled by the Mickey license, this game plays exactly like RC Pro Am and on top of that RARE went ahead and pulled a GBC Mario Golf by adding Adventure and RPG elements to it. You start off as Mickey Mouse on an overworld map, you can move around finding money, solving problems, talking to other characters from the Disney universe (you can even play as Pluto, Minnie and others), buy new cars, etc. Once you feel confident enough you can go and race Pete's kids RC Pro Am style until you beat all the tracks.
Inspector Gadget
Developer: RFX
Plays like: Any platfor *This message will self-destruct* 5, 4, 3, 2, 1... *BOOM*
Nice little platformer. You can play as Inspector Gadget, Penny or Brain (the dog). Gadget is the all-round character, has great stamina, can fly and can use weapons. Penny can swim underwater and hack computers. Brain can double jump and fit through small crevices.
The sprites are very well done, the control play is tight and the game is pretty easy. Perfect to pass the time.
Monster Rancher Explorer
Developer: Tecmo
Plays like: Solomon's Key
If you are thinking that this game looks exactly like Solomon's Key then worry not, you are not crazy. This game is known in Japan as Solomon, a beefed up remake/sequel of the NES version (the actual sequel is known as Fire 'n' Ice in the USA). Even though it's originally a Solomon title, the characters and story are taken from the Monster Hunter games. So the name change to Monster Rancher Explorer is really not that bad.
You play as Cox, a researcher trying to climb the tower to finish his paper on monsters. When you start the game you have the option of entering a guard house to save your game, a stage studio for link cable options and the tower. Other places will open up as you clear the floors.
Once you enter the tower, the game plays just like the Solomon's Key we all like to love and hate. The controls are top notch and thanks to the save feature and a handy map, the game never becomes as frustrating as the NES version. You also have a status screen with all the items you've collected and a bestiary with all the monsters you've seen. The tower has 60 floors, you'll fight a boss every 10 floors, after you complete the 60 tower levels a basement will open up with even more levels and the real ending.
Scooby Doo! Classic Creep Capers
Developer: Digital Sclipse
Plays like: Maniac Mansion!!!!!!!
Maniac Mansion for the GBC!
If you by any chance are thinking that all of the games I've mentioned up to this point are crap, this is where that stops. This game is a
MUST PLAY. The only thing this game has that
could be a flaw is that it is way too easy.
But other than that, it's a classic Scooby Doo story with the goodness of Maniac Mansion's gameplay. You can play as any of the cartoon's characters, switching between them at will. Scooby and Shaggy are outside the mansion, while Velma, Fred and Daphne are inside on different parts of the mansion.
You need to use all of them in tandem to solve the mysteries across all 6 chapters. And just like most Point & Click adventures, you'll collect a different array of items that you'll need to solve puzzles in other areas.
If you're going to play just ONE of the games I've mentioned, please let this be the one. You will not regret it.
WWF Betrayal
Developer: Wayforward Technologies
Plays like: Double Dragon 2
Don't be fooled by the wasslin' license, this game is really a beat'em up with popular WWF characters.
You can pick from 4 characters (The Rock, Steve Austin, Triple H, The Undertaker) and you'll start on the ring fighting an opponent. One of the starting characters will yell offensive stuff at you and run away, you come down the ring and beat up some referees that are down there trying to pick a fight. You'll then enter backstage where Mcmahon will tell you his daughter was kidnapped and he needs you to rescue her. After that you'll go through several levels fighting enemies Double Dragon 2 style, but with less moves.
That still doesn't deter you from trying the game, as it's a different take on all the WWF games released. Ever.