unless someone released a tool I dont know about. It's permanent i spent a month trying to bypass it and there was a tool made that could patch the game to add any DLC to your steam account for free, but it was taken down really quickly. I still have the SteamAPP_IDPatcher thats all you need then you just need to addresses to the dlc your adding. then you go into your steam files and delete the vdinfo file close steam. then reopen steam. then close steam again. then patch the vdinfo file with the app patcher then once again close steam. Then reopen steam and it will show you have whatever dlc you added as purchased in your library. But even after I did this It still would not let me play online. You can possibly use cheat engine to change your lobby from single player to multiplayer and that maybe would let u get the bonus gobblegums but thats about it.