THIS CHAPTER INTRODUCES THE RED TRAIT ENEMIES, THEY GAIN EXTRA DAMAGE UPON REACHING HALF HP AND ARE AMAZING IN SWARMS. q and e to switch level i guess arrow keys to scroll between unit replacer thing space to start e to fire cannon, q to upgrade bank or just click the icons codes give rewards press f to change to alt form on cards, or to change cannon/bank the battle bricks but chopped down to chapter 2 only just so you can actually run it (only if you aren't on a laptop or an older pc lol)