Yep, I liked it. Just one thing, I dropped into the hole to finish off a turret and then couldn't get out and didn't have a save. Perhaps a white tile on the side facing the turrets would solve this?

Great map man, thanks dude!

Another cool map. Keep it coming :D

Nearly the same as part III but also very nice.

Nice map!! well done :)

Part 5 is out!

@alexvkern Yeah, I agree with your suggestion and will fix this, it can be a frustration. But it isn't difficult if you know when to step off the button. Hehe

Very very nice map with some well designed puzzles. But I have one major gripe with the first part:

Dropping the cube onto button using Excursion Funnel is very frustrating because the cube won't always lands right, forcing me to do all over again and again for over 20 times before I finally got the cube landing just right.

SUGGESTION: Raise that button vertically by 1 or 1/2 block so that the cube won't be bouncing around easily and ruins what should be an awesome coordination by the player.