I'm in the section with the airplanes, and T is/flying as a paper airplane. The little helper didn't really explain properly how to steer the plane, and I can't seem to steer it at all. I presumed it would be hold mouse button and point the mouse - same as when T moves around as a crumpled paper ball. But I can't get that to work. Can anyone please help? I've quit out and restarted the game couple of times, and looked in settings too, but there's not much there. It says to click gently beside the plane...

Love the game, but where's music

The game won't allow me to progress from level 2 even though I have collected absolutely every collectible in the game until this point. The game tells me to open the gate in D2, but T keeps saying she is missing something. There is just nothing left to collect - Very frustrating. I have tried restarting, loading a previous save file several times to no avail. I am afraid that my save file is corrupted. How can I fix this? Can I somehow manipulate the save file to trigger "all intel for cube collected"? ...

Done the other achievements, but not this one. From the description it sounds easy, but I can see it has the least completion percentage. Any special instructions?

I'm only one bit away from full completion. It's located somewhere on level 3 which is the large one with the paper plane . I've been everywhere (well, obviously I have not) at least ten times. Can anyone remember a particularly well hidden bit on that level?...