Modifying single‑player games for personal experimentation is generally tolerated, but distributing cheats for multiplayer or monetizing trainer use is unethical and may breach legal or platform rules.
Before diving into the nitty-gritty, let's clarify the tool. A game trainer is a piece of software that runs alongside your game, scanning memory addresses to modify values like health, ammo, or resources. Unlike mods, which change game files, trainers manipulate live data.
Fling (often referred to as MrAntiFun) is the gold standard in this niche. Their trainers are known for being: batman arkham knight trainer fling
For Arkham Knight, Fling addressed the specific pain points of a game that, while beautiful, was criticized for forcing players out of the power fantasy of Batman and into the role of a tank commander.
To download from FLiNG:
| Hotkey | Effect |
|--------|--------|
| F1 | Activate trainer |
| NumPad 1 | Infinite Health |
| NumPad 2 | Infinite Armor/Batmobile Health |
| NumPad 3 | Infinite Ammo (Disruptor, explosive gel) |
| NumPad 4 | Infinite Gadget Energy (no cooldown) |
| NumPad 5 | Super Damage / One-Hit Kills |
| NumPad 6 | Easy Fear Takedowns (no meter drain) |
| NumPad 7 | Freeze Enemy |
| NumPad 8 | Super Speed (movement) |
| NumPad 9 | Super Jump |
| NumPad 0 | Save Current Position |
| NumPad . (Del) | Teleport to Saved Position |
| Ctrl + NumPad 1 | Infinite Upgrade Points |
| Ctrl + NumPad 2 | Unlock All Skills (use carefully) |
| Ctrl + NumPad 3 | Add 100,000 XP |
This is the flagship feature. Activate it, and Batman becomes truly invincible. You can stand in the middle of a militia firing squad, tank explosives to the face, or fail a stealth section intentionally without reloading. For players who want to feel like the comic-accurate Batman—who simply does not lose—this is essential. For Arkham Knight , Fling addressed the specific
To unlock the true Knightfall Protocol ending, Rocksteady required players to collect 243 Riddler trophies, solve all riddles, and defeat Riddler in a final race. This is padded content meant to extend playtime. For completionists with limited time, this is a nightmare.
Fling trainers frequently include options like "Unlock All Upgrades" or "Infinite Upgrade Points." While this doesn't unlock the trophies automatically, it allows a player to max out the Batmobile’s speed and armor instantly, making the Riddler races trivial. Furthermore, pairing infinite health with the Riddler’s death traps turns his sadistic hostage scenarios into a walk in the park—no resetting when you miss a pressure plate. For Arkham Knight
The standard Arkham Knight experience is lethal. A few gunshots can drop the Bat. The Fling trainer, however, provides a safety net—and a wrecking ball. Here are the most sought-after features: