tl;dr - For Any%, the Epic Games Store version on PC is the optimal version. For other categories, any PC version is optimal.

Double Out of Bounds

On the Epic Games Store version and Return to Arkham (PS4/XB1), you can simply reload checkpoint after performing a "double OOB" skip (i.e. Medical Skip, or Batclaw Skip).

On other PC versions (Steam, GoG, etc), Xbox 360, PS3, and Switch, the pause menu breaks after performing a double OOB which prevents you from reloading checkpoint. You must either force quit and restart the game (this takes about 30 seconds on PC), or fall for about 90 seconds at which point the game kills you and lets you continue.

Framerate

Zips are framerate dependent. Any category that uses zips (Any%, 100%, Beat Joker, etc) is optimal at 30fps. Other categories are optimal at higher framerates (62fps is the maximum allowed), due to higher framerates giving you more responsive enemy AI, faster load times, and faster slow motion sequences.

PC versions run at 62fps by default, but can be capped to 30fps by following this guide.

Return to Arkham on Xbox One X or Xbox Series X runs at 45fps on current patch. Playing a disc version with no updates installed should run at 30fps.

All other consoles run at 30fps.

Animation Cancels

Cancelling animations with cinematic gadgets does not work on any PlayStation version.

Load Times

No formal load testing has been done, but anecdotally fastest to slowest should be:

• PC
• Xbox Series (X -> S)
• Xbox One (X -> S -> original)
• Nintendo Switch
• Xbox 360
• PS5
• PS4 (Pro -> original)
• PS3

Mousewheel

On PC, you can bind actions to the mousewheel to skip dialog faster, open grates faster, and duplicate Riddler trophies. This cannot be done on console.

LIVE Service Error

On the Steam version, it is possible to get a "LIVE Service" error popup that kicks you out to the main menu. We don't know what exactly causes this or any way to avoid it. This does not appear to be an issue on the Epic version.

Corner Zips

On version 1.0, you can zip directly off of corners without having to first get corner storage. This was patched in 1.1/GOTY. This is not useful for anything and is the only significant difference between 1.0 and any other version.