It's not really a secret. It's just that to make it possible for normal humans to play four games at once, the games have to be so simplistic that easily-executed tricks can defeat them with no trouble. Take the fourth game, for instance: unlike most games of the "glider" genre, you can let it touch the ground, so all you have to do is lift whenever you glance over and see a ground-based wall coming.
(206, by the way, and it finally gave me my badge.)