WARNING: Those who hate stickers on game cases may want to look away now...
I guess we start off with Sega, seeing how my first console was a Master System
SEGA
Master System:

Games: Asterix and the Secret Mission, Aztec Adventure, Castle of Illusion starring Mickey Mouse, Fantasy Zone, The Lucky Dime Caper starring Donald Duck, Marble Madness, The New Zealand Story, Penguin Land, Phantasy Star, Sonic the Hedgehog, Sonic the Hedgehog 2, Wonder Boy III: The Dragon's Trap.
The Master System was my first console, but I didn't have many games. Only Alex Kidd, Sonic and Aztec Adventure. I was also about 3 at the time, so I didn't like it much. The spikes in Sonic the Hedgehog scared me. Anyhow, a few years after I got my Master System, my uncle borrowed it and broke it. It was only a frayed aerial lead or something, but my mum threw the console away anyhow. The games too
BTW, I have a Master System II, it has Alex Kidd in Miracle World built in. The miracle World Manual is in the Castle of Illusion box atm. I remember when I was a kid and first discovered that there was a 'secret' game in my Master System. I was so excited
Mega Drive:

Games: Animaniacs, Back to the Future III, Ecco the Dolphin, The Lion King, Mega Bomberman, Mega Games I (Columns, World Cup Italia '90, Super Hang-On), Mega Games II (Streets of Rage, Golden Axe, Revenge of Shinobi), Dr. Robotniks Mean Bean Machine, Sonic the Hedgehog, The Story of Thor (Beyond Oasis for you Americans!), Streets of Rage 2. Unboxed: Sonic 2 (x2), Sonic 3D, Sonic & Knuckles, Disney Collection (Castle of Illusion & Quackshot), Streets of Rage 3.
The Mega Drive was the system I played for most of my childhood. I do remember being really excited about Ecco the Dolphin when I bought it as a kid (from the market, I could never afford brand new games) and then getting it home and not being able to beat level 2. It was a real downer as a kid when you bought a game with your saved pocket money for a month or two, and then you didn't really enjoy it. Streets of Rage was a game I played at my mums friends house, and as soon as I had, I knew I had to have it as my next game. I couldn't believe my luck when I found it with Golden Axe and Shinobi included! My favourite games as a kid, besides streets of rage 1 & 2, were Mega Bomberman, Sonic 2 and The Lion King. I was always confused why the Lion King had 'Genesis' written on the box, I guess now I know
I keep Streets of Rage 3 in a spare Mega Bomberman case I have. Back in the day I traded Flashback on SNES and Mega Bomberman on Mega Drive for Jurassic Park Rage Edition and Streets of Rage 3. We were meant to trade back, but it never happened. Years later I traded Jurassic Park and Mortal Kombat 2 for Metroid 2 on Game Boy and another copy of Bomberman, so I ended up with two Bomberman cases in the end. As for hardware, I have 2 Mega Drive IIs and a broken Mega Drive I. I want to fix the model 1 so I can test out the Master System adapter I found for it sometime.
Saturn:

Games: Athlete Kings (AKA Decathlete), Terry Pratchetts DiscWorld, Guardian Heroes, NiGHTs into Dreams, Panzer Dragoon, Panzer Dragoon II Zwei, Rayman, Theme Park, Virtua Fighter, Virtual On: Cyber Trooper, Worms. Not in saturn cases: Panzer Dragoon Saga demo disc (NOT THE REAL THING), Sonic Jam, Christmas NiGHTs.
The Sega Saturn was the last home console I got, I got it for valentines day last year. I didn't have many games for it, so it got very little play, but I went on a saturn buying spree earlier this year, and it's quickly become one of my favourite consoles. The game cases on the other hand - urgh. Worst game cases ever. The cases dont seal shut properly, so fall open easily. Most dont have tabs to hold the manual, which sits loose inside the case. This then falls on the disc when the case is moved, loosing it from its very crappy spindle. Every time I open these cases the damn disc is rolling around loose. The cases are also covered in card, which has no protective plastic covering, so its easily damaged. Even worse, the plastic shell is actually held together at the spine by only this cardboard, so its quite delicate. The front shell of my panzer dragoon box has come loose from the cardboard, I need to figure out which type of glue I can use to restick it without damaging it. Horrible. Maybe I'll replace them all with DVD cases sometime.
Dreamcast

Games: Aerowings, Chu Chu Rocket, Ecco the Dolphin: Defender of the Future, Jet Set Radio, Rayman 2, Sega Bass Fishing, Sonic Adventure, Space Channel 5
I may have said the Saturn cases were the worse ever, but the Dreamcast ones give them a run for their money. They're super delicate, and likely to shatter if dropped. Most of mine have big cracks and stuff everywhere. The hinges are also really fragile - only 2 of my cases still have hinges intact. The Dreamcast was the first console I boguht myself after I decided I wanted to take Retro gaming seriously, and acquire consoles I never owned before. Unfortunately, the awesome bundle I found turned out pretty awful, as most of the games didnt work. In fact, they still dont. Out of these 8, only Space Channel 5, Chu Chu Rocket and Jet Set Radio work reliably. Sonic and Rayman work sometimes, the others never have. I keep meaning to run them through the disc cleaning machine at Gamestation and try them again, but I never get round to it.
Game Gear:

Games: Aerial Assault, Ax Battler: Legend of Golden Axe, The Chessmaster, Halley Wars, Sonic Chaos, Shinobi (aka The G.G. Shinobi).
My Game Gear is a very new acquisition of mine. Its not very portable for a portable - not only is it huge, but to save on batteries I use a fat Master System adapter with it, and because it barely has sound, I have to plug in speaker and turn it up to hear anything

























