World 2-41: Sierra 7

Sierra 7

http://www.kongregate.com/games/simonhason/sierra-7

Usually I wouldn't pick a FPS game unless somebody told me I'd really like it, but I stumbled across this one, which was featured as the badge of the day, so I thought I'd give it a chance. It actually turned out to be pretty good! It was short and sweet, taking me about 35 minutes to complete. 

Overall, I appreciated that Sierra 7 had lots of serious features, such as proper gun names and locations by geographical coordinate. The colour scheme was completely black and white, with red thrown in for blood splatter. It looked very sharp, and added to the intensity of the game. I also really liked the voice over, which gave the perfect amount of guidance without droning on.

World 2-40: Space is Key

Space is Key
http://www.kongregate.com/games/Slasher145/space-is-key

This game reminded me a lot of The Impossible Game on Xbox Live, but rather toned down. Basically you control a square, and the only objective in the game is to jump over and through the gaps at the correct time. In order to keep things fresh, the timing gets changed up at regular intervals; just when you think you've adjusted, the timing is changed with the addition of a speed upgrade, followed by a jump upgrade which actually reverts your speed to the base speed you started at. 

While it only took me 11 minutes to complete this game (and 407 deaths), I found it lightly entertaining. It was also less frustrating than I expected it to be. While Space is Key is nothing spectacular, the bright colours and simple contrast, along with the decent and catchy music, made this game worth the 11 minutes.

January 2013 update: Played the game again to verify my earlier review, and ended up with this score in 8 minutes:

World 2-39: Bullet Heaven

Bullet Heaven
http://www.kongregate.com/games/kupo707/bullet-heaven

I really enjoyed this game. It was fairly long, as most shooters like this one tend to be - mostly because as the levels progress; you become too weak to move forward without grinding at some of the earlier stages for spare cash to upgrade your weapons and defense. But such is the genre.

I enjoyed Bullet Heaven because it had decent graphics - nothing looked muddy or blurry, the music was catchy but not obnoxious (I didn't even mute it - that's saying something), and the upgrades were simple yet effective. The enemies were fairly creative in their attack patterns, and as with most shooters that came out around this time, the bosses were ridiculously overdone in their attacks. The screen is literally filled with bullets at every second of the fight, and even though in this particular game your hit box is just one pixel, it's still a rather hefty task to take on. I find it adds to the excitement, and it's an awesome feeling when you manage to pull off a huge maneuver without taking so much as a single strike.

Overall, I'd give Bullet Heaven:

(Oh, and in case you're wondering: No, I didn't use the cheats. And it was in fact a very hard game to complete).

World 2-38: Another Cave Runner

Another Cave Runner
http://www.kongregate.com/games/Arkuni/another-cave-runner

Well, I picked up this game for a second time since my original completion in order to jog my ever-so-fuzzy memory on this game. I clocked in at level 19, on my third attempt to complete the story mode. It took me all of five minutes, and very minimal effort to finish. This game was hardly entertaining; I found a similar (also free) game recently on my Android that has kept me entertained for over three hours so far, which sadly puts this game to shame.

In Another Cave Runner, your objective is simply to run to the end of the cave. There is a track bar up top to show you how close you are to the end, and a simple leveling system (which doesn't even keep track of your levels) that awards you cute little upgrades, such as a double jump, an HP increase, and more powerful attacks. Of course, there really isn't much to attack. In fact, there is a grand total of two completely different monsters: one that sits on the ground, and one that sits in the middle of the screen, both just waiting for you to either bonk into them or slash them up. But don't worry, if you take a hit you will gain some HP back after a level or two, which by the way are very frequent, coming by every 6 exp points (with 1 exp point earned for each kill). There are a couple other obstacles to keep your eyes out for, including stationary rocks, rolling rocks, and flimsy rock bridges that tear down as you cross them (but again, don't worry, because by time your path is gone you have already crossed the pit of lava and come face to face with another "obstacle.")

All in all, I wouldn't even recommend this game to a person who is just looking to burn off five measly minutes of their time. If you want a side scrolling runner game, check out Canabalt or Jetpack Joyride, both of which are available for free in various places. 

World 2-37: Hedgehog Launch 2

Hedgehog Launch 2

http://www.kongregate.com/games/ArmorGames/hedgehog-launch-2

Hedgehog Launch 2 is another typical launch game, with the only immediately obvious difference being that you launch from the bottom of the screen upwards. After a vomit-inducing amount of flipping around, your hedgehog will launch from your giant sling shot (which is, among other things, upgradable at the shop), you will be able to control his movements in the air, leaning him left and right. If you land him on the floating beams, he will propel higher into the air and score you a few bucks. Height and amount of cash is awarded in increasing amounts which are easily identified by their colour. There are also floating coins to be collected as an added bonus.

All this money is used to buy a vast assortment of upgrades, varying from standard bar height and fuel tanks, to a radar that shows the upcoming beams and coins as you fly, and parachutes which slow your fall down to allow for a more thorough collection and flight times to multiply your bonus each round (which in turn, awards you with more money!). As far as launch games go, this is not one of my favourites, but it definitely gave me a few hours of entertainment over a few casual plays.

World 2-36: Sushi Cat 2

Sushi Cat 2
http://www.kongregate.com/games/ArmorGames/sushi-cat-2

Sushi Cat 2 is (obviously) a sequel to another great game, called Sushi Cat. The games play much like Plinko, where you drop the ball (in this case, a very cute and chubby cat) and wait for it to fall to the bottom, hoping to collect as much of the prize as you can - in this case, sushi. I had a lot of fun playing this series. The graphics are absolutely perfect, the music is fun to listen to, yet doesn't repeat throughout the entire game (each level theme has a new song). There is also a fast forward button, which is great for when your cat gets stuck and you need him to fall down faster. There's also a quick restart button, which is very handy in case you mess up your first shot.

I also love the way the cat bounces around. He looks like a big ball of gelatin, and acts that way too. The momentum in this game is spot on. There are also some really cool power ups to collect in Sushi Cat 2, such as Shopping Spree, where you have a limited time to just click on as many pieces of sushi as you can to collect them, instead of having to roll over them with your cat.

Overall, Sushi Cat 2 is a really fun game, and I definitely recommend it to anybody looking for an easy to play, yet very addicting game.

World 2-35: Tentacle Wars: The Purple Menace

Tentacle Wars: The Purple Menace

http://www.kongregate.com/games/gamezhero/tentacle-wars-the-purple-menace

Honestly, I never did figure out exactly how this game works. Somehow I managed to beat it though! It was pretty fun for the first couple of levels, and then it became pretty intense and hard to figure out. Since I couldn't figure out how the game worked, I can't really write a review on this game.
Based on personal enjoyment, I'll give Tentacle Wars: