So, this game is VERY simple to operate, but the difficulty ramps up insanely fast. Around level 7 or 8, walls become useless as the zombies simply blast right through them faster than the characters can shoot. The last level I did I had a wall that was 4 layers thick. They tore through it in the span of less than two shots. I get that you want the game to be difficult, but shouldn't it at least be possible? The other problem is, of course, the simplicity of the design. I get that it's a gamejam game, but it still seems really bad to have all the sprites just be different color dots.