Gameplay:

Final Doom plays identically to Doom II: Hell on Earth, and even features the same weapons, items, and monsters. The original game is widely considered to be significantly more difficult than its predecessors Doom and Doom II.

The gameplay in the PlayStation version of Final Doom is nearly identical to that found in the PlayStation version of Doom, and, in addition, it was compatible with the PlayStation Mouse. Compared to the MS-DOS original, the PlayStation version's overall difficulty was significantly reduced. Many of the harder levels were removed and those that remained often had enemies taken out (most noticeably the Cyberdemon being removed from the level 'Baron's Lair'). As in the original PlayStation version of Doom, many of the larger levels from the original MS-DOS versions of Final Doom and Master Levels for Doom II were removed, and both the Arch-vile and Spider Mastermind monsters were removed, due to technical constraints. This limited the PlayStation version to 30 levels in total. The more traditional rock tracks featured in Final Doom were replaced by a creepier ambient soundtrack by Aubrey Hodges, who later composed the music for Doom 64 in 1997.