In Ragnarok, "0 delay" refers to a game mechanic where a character's attack or skill can be executed instantly, without any delay. This can be achieved through various means, such as using certain equipment, skills, or plugins.
: The GRF file contains modified .act (action) files where animation frame times are set to 0 ms . Ragnarok 0 Delay Sprite Grf
Pre-2010 clients (e.g., eAthena) had a bug where if you replaced a skill's effect sprite with a 0x0 pixel file, the client would skip the "cooldown flag." This was patched in official kRO and most modern emulators (Hercules, rAthena). In Ragnarok, "0 delay" refers to a game
: Every skill in Ragnarok Online is tied to a sprite animation. Even if a server has "zero after-cast delay," the game client must still complete the sprite's animation before it can initiate the next one. A 0 Delay GRF replaces original Pre-2010 clients (e