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Arresto Momento Duo was the incantation of a stronger variation of Arresto Momentum, a spell which slowed down or stopped a moving or falling object. It was possibly twice as strong as normal Arresto Momento.
Behind the scenes
- This spell was meant to be in the Game Boy Advance version of the video game adaptation of Harry Potter and the Goblet of Fire. This is evidenced by the game's debug menu, which is inaccessible during normal gameplay but can be accessed via a cheating device such as an Action Replay. One of the options is a list of all of the text in the game, with "Arresto Momento Duo" being listed along with the game's other spells. This spell is thus inaccurate in regards to the films, using the video game incantation Arresto Momento rather than the films' Arresto Momentum.
- The meaning of the incantation (Duo means two) suggests that this spell can be used to slow down two falling objects at once.
- Harry Potter and the Goblet of Fire (video game) (Cut from final version)