Its annoying when you can't blink higher up even if you know you could probably make the blink, the game doesn't let you get onto the steep high rooftops.

It's an awesome game, just some feedback for future games in the series.

There have to be some limits, or people would just teleport outside of the level. Would be cool if a Sequel would be open world (like Dishonored was once meant to be...or at least I remember reading something about it being open world some time ago when it was first announced), then there would probably be no invisible walls...make it play in a big city on an island...and fill the water with sharks...but as long as the game is level-based, there is simply no way to allow the player to go everywhere he wants to.

Someone didn't read the Blink description it seems. Blink is a super fast dash and not a teleporation. The teleportation skill is in possession of Daud and his assassins. It says on the skill description that Blink is less effective vertically.