I have finished the game almost. The so called final missions (both endings) are pretty easy as far as the initial fighting at the old casino is concerned.. But getting on the helicopter is impossible for me. The game prompts to press spacebar repeatedly to get on the heli. I did that but failed to board the heli. Niko just falls down into water and the mission ends unsuccessful.
Each time when the spacebar is pressed the view changes. One moment we are looking up at the heli from below and next moment we are looking down at it from above.
Anybody else got this problem? Any solution? Thanks in advance.