Oh, the "explosives or something like that" is that Canyon level OR the one where you have to save Uncle Jalopeo.

on the uncle jalepeo level, the 2 player explosives puzzle the 1st thing you need to do is push th striped thing into a ramp position leading to the 2 empty carts. then carefully drag the explosived down the ramp and with the help of a friend get the explosives into the front cart. then 1 sackperson per cart push the carts across the gap from the ramp. the player who pushed the bomb across needs to push the cart as far as they can passed the lever and button. the other player can let their cart go it will roll back. while 1 player holds the bomb in the cart in place the other player must pull the lever to lower the roller ramp. once lowered the player can release the cart and it should roll onto the roller ramp and should automatically begin to climb the ramp. if it looks like the cart will tip over then begin to raise it back up once the bomb is clear. once the cart stops at the top on the flat then press the red button to explode the bomb and release the goodies from the jail.