6Axis is Jimmy's first attempt to make Doom slightly more realistic. Only slightly - there's certainly no Brutal/Beautiful Doom-level aesthetic enhancements going on here (hell, there aren't even new GLDEFS or TERRAIN definitions :o). Though it does introduce a few modern elements into the gameplay of the game we all know and love - such as inventory items, player morphing, weapon zooms and upgrades for the player's attributes and arsenal.