At first I thought the controls were terrible because when I would scroll up or down my whole page would scroll, which almost made me leave, but then I remembered that full screen existed. I still might prefer WASD for the controls though. I cleared the first level but I kept dying over and over on the second level so I gave up. I saw a gun in the gameplay video but I only ever used my wheelchair to destroy zombies. Maybe I would have found it in the second level if I had explored some more.