You have finally reached Hamburglar! However, he will stammer out that the magic bag has escaped and ask you to find all six of his puzzle cards. Luckily, you should already have three.
Level 1 - Burning Bridges
There is a bonus area in this level, but it is very difficult to reach and also somewhat treacherous. You probably don't want to go into it. Anyway, if you want to access it, this is the strategy. Drop to the right to land on a bridge. Move quickly to the left, because as soon as you touch the bridge, it will start to burn, starting from the left end (you will find many of these bridges from here on out). Quickly grab the fill-in block and return to the bridge, running to the right. Put the fill-in block down and throw one of the porous blocks you will find in the lava on the right. Quickly grab the fill-in block again and jump onto the porous block to cross the lava. Be careful not to get hit by the flames that will fall from above. When you notice a ledge above you, jump on it. Climb the blocks paying attention to the flames, until you reach another porous block to the right. Put the fill-in block down for a moment and throw the porous one into the lava on the right. Quickly grab the fill-in block again and quickly jump over the porous block to cross this lava pool as well. This will bring you to a zipper with a dotted platform underneath. Fill it with the fill-in block, to be able to enter the zipper. In this bonus level you will have to climb to the top by collecting the arches, using the springboards and paying attention to the lava, which you will sometimes have to overcome with porous blocks. At the top you will also find two 1-Ups, but you will have to quickly cross a burning bridge to be able to catch them. Enter the zipper to return to the main level. Jump up and continue left, dropping off the precipice at the end to return to where you passed before. Throw a porous block into the lava pool to cross it. Watch out for falling flames. When you get to another bridge, stay under it: it will protect you from the flames. Finally jump on the suspended blocks just before the finish line. Climb up and making a long jump to the right will bring you to a suspended platform with a card. Grab it and jump to the right, to land to the right of the finish line.
The card you found is for Hamburglar’s Hideout.