The premise for bad bots is the standard sci-fi trope about robots that have been programmed to kill, with you, the main character, being the only one capable of stopping them. The story isn't very good but it isn't terrible either, it's kind of just there to move the game along. The set pieces and art style are servicable - you end up seeing a lot of the same sprites and textures, but there's enough variance that you don't feel like you're going down the same corridor for the hundredth time. The music and sound are, well, below average at best, but it wasn't so bad that I felt like I had to turn it off or anything.
Now, as for the actualy gameplay. It's a side-scrolling shooter, you have your axe, a rifle, and can pick up various "special" weapons along the way. The axe and rifle work well enough for most enemies, and the different special weapons each behave a little differently, which spices things up a bit. I played on medium difficulty, and it wasn't too difficult, but there is one fatal gameplay flaw that kind of ruins the game. Whenever you get hit by anything other than a gun, you have to go through a 1-2 second "getting hit" animation where you can't move. Now, for the first half of the game, it's not really noticable, since there aren't too many enemies at one time, and most of them are shooting at you, but in the second half when the game locks you into rooms with 20-30 melee enemies? Yeah, not so fun. There are multiple times where I would get "stunlocked" by melee enemies to the point where I couldn't even move, and I just had to watch them slowly drain my health to zero while I repeated the "getting hit" animation for god knows how many times. The only way to clear those rooms is to never get hit, which, when there are 30+ killer robots in a locked room with you, is harder than it looks. This is also especially frustrating for the few "boss" sequences, in a game, where you're locked in a tiny room with a robot that's as big as your jump height, making it almost impossible to dodge, and each time you get hit you go through the "getting hit" animation so that the boss has ample time to hit you again, making you stunned again, ad infinum.
So yeah, an average game ruined by a fatal game flaw. I wish it wasn't so because for the first hour or two I played, it was actually enjoyable, which is a pleasant surprise for bundle fodder, but during the second half I was cursing the game and wanting to get it over with more than I was having fun.