Teenage Mutant Ninja Turtles 2 => How to pick up objects !!!

I had bought Teenage Mutant Ninja Turtles(TM) 2 - BATTLE NEXUS(TM) yesterday and while playing the game I came accros a stage in which I had to pick up a robot and then continue but the problem is that I dont know how to pick up any object in the game and nither is their any help file or a key to pick up anything

Pls. if any body knows how to pick up objects in the game then Pls. let me know !!!