I feel kind of bad that the only two games you guys have posted so far that I recognize are Dark Stone, because my friend has it and Herc's Adventures because it was in the latest JonTron video. Well... I'll contribute.
<spoiler=Breakout>http://image.gamespotcdn.net/gamespot/images/box/5/6/9/250569_65971_front.jpg
Breakout
This is a game that came out for the PC and PlayStation in 2000, which I got for my ninth birthday (on PC). The series overall is a bit more well-known than this title. Especially since there was another Breakout game that was released the same year. It's that old arcade series where you move a paddle left and right to bounce a ball around in order to break a brick wall at the top of the screen. Remember that? Well, this one threw a lot of cool new gameplay mechanics into the mix. Plus, it had characters and a story. Pretty neat.
http://cdn1.spong.com/screen-shot/b/r/breakout22201/_-Breakout-PC-_.jpg
<spoiler=The Return of the Incredible Machine: Contraptions>http://i101.photobucket.com/albums/m62/Mario_Kinnikuman/Return_of_the_Incredible_Machine_-_.png
The Return of the Incredible Machine: Contraptions
This was a physics puzzle strategy game where you you would build incredibly-complex machines out of random stuff to accomplish simple tasks. "Rube Goldberg Machines", really.
http://image.gamespotcdn.net/gamespot/images/screenshots/gs/puzzle/contraptions/incrediblemachinecontraptions_screen001.jpg
http://www.thestrong.org/online-collections/images/Z003/Z00386/Z0038692.jpg
Zapper: One Wicked Cricket!
People accused this game of being a Frogger clone. That is complete and total garbage. This game doesn't play anything like Frogger any more than Sonic the Hedgehog played like Super Mario Bros.. You hop around on a grid-based map, collecting stuff, and have to avoid the predictable patterns of obstacles and enemies that seem completely unaware of your presence. (Unless you're on Hard Mode. Then Maggie the Magpie will try to drop bombs on you all the time.) That's where the similarities end. Zapper can actually kill things. There were also a lot more puzzles involved, bonus stages that changed the gameplay dramatically, and a much more wacky style with attitude, making the comparison between it and Frogger with Sonic the Hedgehog and Super Mario World all the more accurate.
http://www.mobygames.com/images/shots/l/458511-zapper-one-wicked-cricket-windows-screenshot-play-with-mirrors.png
http://86bb71d19d3bcb79effc-d9e6924a0395cb1b5b9f03b7640d26eb.r91.cf1.rackcdn.com/wp-content/uploads/2010/06/singularity-walkthrough-game-boxart.jpg
Singularity
Now I know Yahtzee reviewed this one, but aside from there, when have he rest of you ever heard mention of this game? It's somewhat like the Half-Life games in how it follows a linear design that functions like one giant level that takes up the entire game and is broken into chapters. Also, it avoids cutscenes in favor of in-game discussions between characters. Oh, and puzzles. It has puzzles. And human enemies as well as monsters.
http://www.primaryignition.com/wp-content/uploads/2010/07/Singularity-2.jpg
<spoiler=Army Men: Sarge's Heroes>http://images1.wikia.nocookie.net/__cb20081209043951/nintendo/en/images/d/d9/N64_NA_ArmyMenSargesHeroes.jpg
Army Men: Sarge's Heroes
Now, this wasn't the first Army Men game. But this was the one that introduced me to the series, and it's a dang fine game. (Though I think Sarge's Heroes 2 is superior.) It's campy. Campy! You know, like The A-Team, M*A*S*H, <i.Gilligan's Island[/I], The Andy Griffith Show, and Leave it to Beaver? That kind of style? Yeah, it's rampant in this game. It's a war shooter that's colorful and cheerful. How often do you see that nowadays?
http://img.gamefaqs.net/screens/f/9/7/gfs_41716_2_10.jpg
<spoiler=Riviera: The Promised Land>http://www.lukiegames.com/assets/images/psp/PSP_RIVIERA_THE_PROMISED_LAND.jpg
Riviera: The Promised Land
This neat little JRPG on the GameBoy Advance and PSP might be something people would consider a guilty pleasure, considering it's... part harem. Yes, you play as a guy named "Ein", who accumulates multiple female companions along his journey. It also implements dating sim mechanics that allow for the relationship between Ein and his companions to reflect your own words and actions. Also, it totally hilarious. Plus, the story is considerably different from the usual JRPG fare. I can't say why, because that would spoil everything. But it is indeed a very excellent JRPG.
http://upload.wikimedia.org/wikipedia/en/d/db/Riviera_The_Promised_Land_Combat_01.png
<spoiler=Recettear: An Item Shop's Tale>http://upload.wikimedia.org/wikipedia/en/1/11/Recettear.jpg
Recettear: An Item Shop's Tale
Now who would have ever expected we'd see a game like this someday? You know those shops? In RPGs? The ones you just pop in to cap your fill of health and arrows and get a better sword, perhaps, and then you're on your merry way? Yeah, imagine an entire game about the person on the other side of that counter! Sounds boring, doesn't it? Well, it isn't. In fact, I can easily say that this is the best JRPG I have ever played in my life! You aren't behind the counter all the time, though. You still go to the town and some blacksmith or something to acquire things to sell. The town shop doesn't appear to have a shopkeeper and the blacksmith-dude still buys stuff you got from him for no apparent reason. Oh, and there are dungeons. Yes. Real, serious dungeons. You can find adventurers who will join up with you to hunt for treasures that you can sell. "Capitalism, ho!"
http://cdn2.steampowered.com/v/gfx/apps/70400/ss_9b32a4b2a712d3879627bcb4761612ba0ac65487.1920x1080.jpg?t=1316028701