Battlepillars was originally a phone game, and it certainly shows. But does that mean that this isn't any fun? Certainly not.
Here's a Quick Look video of what you should expect when heading into this. Take a look if you're interested or just read my summary of the game below. Just a warning though, it has birds carpet bombing with their crap. http://youtu.be/cpoGKJ-wYVw
I'll start by saying the basic premiss of this game is a tug-of-war between two sides, something you've probably seen before in other games. But does this do anything different? No, not really. However, it's still pretty fun to play.
You construct your units with a regenerating resource that can be upgraded to regen faster for the same resource, the cost gaining in price every time. The units themselves are mashed together by a decent number of parts you can select before going into the match, and each one does different things, such as make your guy charge faster, shoot enemies at a distance, knock the enemy backwards, set up mines, poison an enemy, heal the soldier over time, and so on. The charm to it is constructing the unit you want to make and seeing it charge into battle and (hopefully) crush your foes. You just have to keep in mind that even though you're creating a stronger unit, it costs more to make it while the enemy might be swarming in on you.
The other fun part to this game is customizing your soldiers with skins and upgrades, and you can choose which upgrades/skins you want without having to go through others first, which is always appreciated. I also like how open ended this game is about beating certain levels/challenges. There isn't always a correct way to go about something to achieve victory. You can either spam out fodder to overwhelm your enemy, have a mix of certain parts that benefit off each other, or have titans with every expensive part you can throw on it that stomp mostly anything in their path. There's just a good number of things you can do.
But lets talk about some of the negatives now. Because this is a phone port, there isn't much interaction with you and what's happening on the field. You're kind of farting around and waiting to send out your next unit. While it is fun to to watch your units do the work, I wish there was more you could do than just summon an animal friend.
I'm also not a fan of buying straight upgrades for parts you already own. That doesn't encourage swapping parts from ones that you made better than others. I much rather play with a different weapon to give my units than use the same ones for every mission simply because the game is that much easier with them. The fact that the game limits how many parts you can take into battle also irks me. There could've been a lot more depth to the game if you could always choose a counter unit to what your enemy was sending at you instead of being stuck with what you chose and hoping it works out.
But to sum this game up, even with the lack of interactivity, this is still a solid title for under 3 bucks currently, and possibly still worth it for 5 if you enjoy a decent time waster. The multiplayer options also open this game up for more fun if the campaign and endless modes aren't your thing.