Super Smash Bros. Melee was a party game designed for casual play. Nintendo included no formal competitive features — no tournament mode, no frame data display, no advanced controller settings. The game was not designed to be played at the level players eventually reached.
The competitive community discovered that the GameCube controller’s analogue gates, combined with Melee’s physics engine, allowed techniques impossible in any other fighting game: wavedashing (moving while in an aerial animation), L-cancelling (halving landing lag), and the Fox laser cancel stack that created a new mid-range game.
Twenty-five years later, Melee is still played at major tournaments with original hardware and controllers. The game was discontinued by Nintendo, removed from sponsored events, and its community ran its own tournaments without official support for over a decade. Nintendo eventually acknowledged the scene.
The 20XX Training Hack Pack — a community-made ROM modification that adds frame counters, hitbox visualisers, and training tools — has been used to train players without Nintendo’s blessing. It represents the community building the infrastructure the game never shipped with, for a game that outlived its intended design context by two decades.

Didn’t realise how much was hidden under the surface. Makes me want to replay it with fresh eyes.
This is why I always check every corner. You never know what’s been left for the observant player.