Park Cleaner is a game mockup with one huge level.
Pretty cool game, I liked the gameplay, despite not having a clear explanation of the controls and weapon trading system.
I believe that there was a bug when I played, because at any given time, there was a spider on the wall near a checkpoint, it is simply impossible to hit her with the gun grenade launchers.
As I had collected all the other weapons, just it is not possible to move forward.