Rail grinding with trick boosts, wall running, wall climbing, and quickstepping.
Search for “Sonic Bumper Engine 1.x” or the latest stable build. sonic bumper engine download portable
Download the standard .exe installer. Run it on a computer where you do have admin rights (e.g., your home PC). During installation, choose a dummy folder, like C:\Temp\SonicBumperInstall . Rail grinding with trick boosts, wall running, wall