To find the key in the second level, walk as far right as you can without going up any platforms. Once you hit the grey wall, backtrack to the first tower you can climb, start climbing. Jump onto the second platform on the right, the key will be partway along that platform. KEEP THIS COMMENT ALIVE.
 "Sydney Shark"){kind=icon}
 "Nano War"){kind=icon}
 "Creeper World Training Sim"){kind=icon}
 "Micro Olympics"){kind=icon}
 "Smiley Race 1"){kind=icon}
 "Thing-Thing 3"){kind=icon}
 "Team Battle"){kind=icon}