IntPiPoMo #6 Machinarium (iOS)

Machinarium’s happy little robot makes his way through the world classically finding and combining objects and interacting with the landscape.

Here, I need to find a way to lower the bridge. There’s a grumpy little guy in the shack who is no help at all.  I’ve climbed the little spiky ladder and got an object which isn’t helping my situation yet.  Clearly I haven’t tried every single thing yet or I’d be over the bridge.