and yeah, i figured out the mattock thing... seems its buried in the middle of the pit under the platform? very useful though, and i stumbled across it by accident.
i didn't realize the big spiders gave you the stickybombs, i generally just run away from them because they are scary. i did figure out that vampire bats in the second world drop capes though. my biggest discovery came from strange behavior of udjats in one of the levels in the second world though
