|Giga Bowser did not originate from fanon, and more information can be found on their respective wiki(s). You may read more about it on the following wiki(s):|
| Koopa Troop,|
Ganondorf and Mewtwo
|Main Weapon(s)||Claws, Elemental breath, Spiky shell|
|Ability/ies|| Near invulnerability|
Can breathe fire
Giga Bowser is an alternate form of Bowser introduced in the Super Smash Bros. series, appearing as a boss in Melee before becoming Bowser's Final Smash. Giga Bowser has elemental-based attacks, which gives a unique twist to Bowser's usually flame-based attacks, with explosive headbutts or spins that harness icy wind.
Giga Bowser appears as the main antagonist of Mushroom Kingdom Warriors. In the game's final story scenario ("Mario + Luigi"), Mario and Luigi accidentally knock Bowser into a button that transforms him into Giga Bowser and sends him into a rage, destroying Bowser's Kingdom before moving on towards the Mushroom Kingdom.