In Pokémon Super Mystery Dungeon, the users jumps over Pokémon or group of Pokémon directly in front of it, moving to the tile on the other side of the Pokémon. When used by a Gigantic Pokémon, the move has no effect whatsoever.
Splash does nothing but show an animation. The user can choose which direction to perform it in, which will leave the user facing that direction after Splash is performed.
Table assumes the user is in the square marked by > facing to the right. Orange squares indicate spaces that are hit. Red squares indicate the knockback on hit Pokémon. A blue square indicates the user's position after performing the move.
While its English name suggests an association with water, its Japanese name, はねる haneru, can mean both splash and hop, but usually the latter. This explains why the move can be learned by Pokémon such as Spoink and Hoppip—species who have no association with water but are known for hopping or jumping—and why it is disabled by Gravity. Its somewhat misleading English name is likely due to its initial exclusivity to Magikarp.
In the anime, Splash is the most common result of Metronome.
Splash and the event-exclusive moves Celebrate and Hold Hands are the only moves in the core series Pokémon games that have no effect whatsoever.