What does the phrase "Huge air, rickety loops" mean in the following sentence (not available online):
Tilt your iPhone for backflips and frontflips, but be sure to do a perfect landing. Huge air, rickety loops – these tracks aren’t for weak hearts!
Here is a description of the game Pumped BMX Flow:
Pumped BMX, of course, focuses on bike riding versus motorized vehicles. But the goal of BMX is simple and fun. You need to nail as many tricks as you can whilst riding over several ramps. Keep going until you wipeout, which would mean a game over.