The only thing you need to do in this game is press the space key from time to time, so finishing it won't be difficult. Or will it? This is one of the most addictive and difficult flash games you will find. Space is Key is presented to you by SolidGames.com and is sponsored by Armor Games. This action game has been played 17,350 times by our visitors and currently has a rating of 77% after 629 votes.