One of my goals this year for PAX East was to play every single game featured in the Boston Indie Showcase, a hand-picked collection of excellent mobile games created by independent developers. After checking out all the other games featured in the showcase, I was excited to see what Not Without You had in store for me on the show floor.

Out of all the games in the Boston Indie Showcase, most of which were very puzzle-heavy, Not Without You was definitely the most challenging of them all.

The blue furry creatures of Not Without You need your help escaping from the lab, which would be easy peasy, if the creatures didn’t move in tandem with one another. Using the environment and obstacles placed in your way, your task is to arrange these creatures in the right formation to lead them out of the lab doors in as few moves as possible.

Lawnmower Challenge, another selection for this year’s Boston Indie Showcase at PAX East, has done something interesting: it’s taken a chore that most consider a sweaty nuisance, and turned it into a mind-bending puzzle game.

In Lawnmower Challenge, your quest is simple: mow all the grass. However, these aren’t your average suburban lawns. There are locked gates that can only be unlocked with a key, unmowable sections that need planting, and gates that can only be opened from a certain direction. These all would be simple obstacles to overcome if you weren’t going for a perfect score, as your steps are counted and the fewer you take, the more stars you’ll earn.

Don’t let the simple controls and cute graphics fool you; it’ll take considerable planning to complete each level at three stars.

Imagine being turned into a jumping bean by an evil wizard, and on top of all that having your girlfriend kidnapped. Worst day ever, right? That’s what our hero, Emilio, is faced with in Bean’s Quest, a bouncing 16-bit platformer included in the Boston Indie Showcase, which will be shown off this weekend at PAX East.

Using the touchscreen controls of your favorite iOS device, you control Emilio as he bounds, bounces, and boings his way through each level, collecting diamonds as well as his missing pet axolotls along the way. Emilio never stops jumping, so all you have to do is move him left or right, but simple controls don’t make this game a breeze.

The difficulty in Bean’s Quest lies not in completing each level, but completing each level under the required number of bounces to obtain a perfect rating. If you’re going for all the diamonds and axolotls as well, it gets even more difficult. I found myself repeating levels over and over to try to get a better score and collect all the goodies, and with 150 levels to traverse, replay level for Bean’s Quest is pretty high.

Bean’s Quest also features an original soundtrack, as well as Game Center integration.

The game is available for iPhone, iPad, and iPod Touch. It’s on sale right now, so jump on over to the iTunes Store and pick it up for $1.99, or check it out on the show floor this weekend at PAX.

The full version of little logic puzzler Girls Like Robots is not released quite yet, but I got a chance to check it out before it hits the show floor at PAX East this weekend.

The gameplay of Girls Like Robots is simple: make all the square people happy. Each level is a grid, with different amounts of spaces to place your square shaped friends in the right arrangement so that everyone plays nice. There’s the girls, who love being surrounded by robots. The nerds love being surrounded by girls, not other nerds. Girls won’t mind being around nerds if there’s some pie present, but the robots HATE pies.

It all sounds really cute and whimsical, but quickly you’ll realize that this little puzzle game is, well, a puzzler. It’s hard! Just like in real life, you can’t make everyone happy, and you won’t be able to in Girls Like Robots either. Depending on which squares you’re working with, you’ll have to decide which arrangement will maximize points and keep anyone from getting too angry with one another.

The third and final game I checked out at this past weekend’s PAX East independent game showcase was an amazing little game called Snapshot, on its way to PC, Mac, and some consoles, sometime very soon. PAX East is the first time in awhile that Snapshot has been available for demo, so I felt really lucky to get a chance to sit down and spend some time with this title.

Snapshot reminded me of Braid right off the bat, and this observation wasn’t far off. Playing as this cute little robot dude navigating some brilliantly designed, beautifully animated levels, players use a camera to solve puzzles. Boxes can be moved, platforms can be relocated, and obstacles can be removed, as the player takes a picture of an object and places that photo over the environment to continue through the level.

It’s not always as easy as it sounds, though, as the objects aren’t always friendly, or aren’t always easily captured with the camera.