Z is the only working key ingame (Jump Key) Avoid Spikes by jumping At the top is the display of the players health points, you will notice chunks of the visor will disappear the more you get hit, the player has only 2 hitpoints.
For quick notices, if you want more interesting content added to the game, I suggest recommendations from the game's comment section which costs likes. Currently, 5 more likes or favorites (both can add together) are required for next update. Also, I am aware of the accidents that may occur with an existing barage of spikes, I do not know how to fix this issue and have no intent of fixing it (which is also the reason you start with 2 hitpoints).