KENSHI

I've made a proper response to this video in its comments so I won't repeat myself. Instead I want to write a makeshift tutorial for Kenshi here as it seems to be confusing for new players.

The game doesn't properly start until you try to leave the initial platform. To do so you must traverse the semi-translucent bridge connecting initial platform to other platforms. Trying to just walk over it will result in a fall. By binding space, the button commonly associated with jumping, to the most important mechanic of the game I expected players to learn it while trying to escape the initial platform. When you push the space button, semi-translucent bridges turn solid and vice versa. Now you have bridges you can walk over and a mechanic that enables you to traverse all over the map. But escaping from the initial platform starts the game and now enemies spawn. You can't hurt moving enemies, I once again thought that it will force players to try fleeing them and as so from the need of platform traversal pressing the space button. When you press the space button bridges aren't the only thing that's affected, moving enemies freeze and frozen one start to move. Those frozen enemies can be killed which gives you points. Hope this will clarify things up for anyone who stumbles onto this game.

TL;DR: Try pressing, not mashing, the space button