It's Colossatron: Massive World Threat! The creators of Jetpack Joyride have unleashed a mechanical serpent from space on the planet, allowing it to snake its way from city to city as it destroys everything in its path. The best part is you get to participate in said destruction, all by grabbing floating power core segments and attaching them to your machine. It's crazy amounts of fun, but making an efficient robot of chaos will require a little more than wanton color matching.

As Colossatron ravages the landscape, your job is to grab segments that jet by and attach them to the body of the beast. It's as easy as tapping and dragging, but formulating a strategy is just as important as being fast with your fingers. Segments are color coded to show their function. Placing primary colors next to each other causes them to combine and form new units. For example, yellow pulse blasters do a fine job on their own, as do blue lightning spires. Place them side by side and they suddenly merge into a green proximity repair segment, healing damage to nearby cores. This makes location extremely important, so think before you attach!

Between levels, Colossatron: Massive World Threat sends you to the armory to let you upgrade your beast one segment type at a time. You can also repair damage, manually add power cores, reconfigure everything, or even power up segments one by one. All of this costs in-game cash, which you earn by being an efficient little destructor. Colossatron has a simple in-app purchase system that lets you buy prism cores to convert to cash or use to upgrade things in the armory. It's very respectfully integrated into the game, but the prices for bundles might just make your eyes bug out. If you're interested in spending $39 or even $99 on a casual mobile game, you now have your chance. And it's just two quick taps away!

The big numbers in the "micro"-transaction store aside, Colossatron is one of the finest arcade games on the mobile market. It elegantly mixes tactical gameplay with simple color matching and fast-paced levels that last just the right amount of time. Combine that with Halfbrick's flair for drama and comedy and you've got a game you won't mind sitting down with for a few hours at a time.