Thanks to Super Smash Bros Melee, the GameCube is still an important platform for Smash arcade controllers to work on today.
Cubs made a hybrid, the Cubstraption, that has a GameCube controller on the left and half of a box controller on the right.
The FightBox R1-F is a dream come true for platform fighter players who love the Frame1 layout but would rather enjoy it with Sanwa buttons.
The Glyph is a modular all-button controller that is available in layouts for games from Smash to Street Fighter.
The Superslab Digital Combat Controller is a smaller LED controller by Prong for Super Smash Bros players.
It's nice how the Bubblebox is on the smaller side of things, but it still has ample width in a way that sets it apart from competitors.
The Leme Tech Zero uniquely runs on the pico-rectangle firmware, yet it is still compatible with the HayBox firmware if you prefer that.
The legendary B0XX's optimal Melee layout uses Sanwa buttons with optional Gateron Clear switches, including extras like a 20XX memory card.
Those looking for an all-key box controller with the Smash community's preferred layout are in luck because of the HTangl.