Have the paid version but this applies to both. First part of the game is pretty good, second part of the game relies entirely on RNG. All the stuff you learn in chapter 1 become pointless in chapter 2 since it's buggy and unfinished. The swarm hits you even if you can run in a straight line with no obstacles. Trying to take the upper path regularly doesn't work and nets you a loss. Cool animating but that's about it.