The effects that occur appear to be random and include: In Blackwater, players can initiate some strange effects by jumping between the wagon and the wall of the mortuary (the gray-blue building with the coffin in front of it, across the street from the docks), switching to fists, pressing the aim and block buttons, and then attempting to walk between the wagon's back wheel and the wall. Although Rockstar Games has patched many of these glitches, a few survive to this day. Just as there are occasional glitches found in single player mode, Red Dead Redemption's multiplayer mode contains some as well. 3.13 Multiplayer Injured Man XP/'The End of Multiplayer' Glitch (Partially patched).3.12 Glitches Unpatched Glitch (Partially patched).3.9 Under the Blackwater Freight Warehouse.3.3 Blackwater Slingshot (Partially patched).