On the subject of badly translated move names, Double Slap still sticks out to me like a sore thumb, when it hits up to 5 times. It really makes you wonder why none of the programmers ever caught that during the translation phase. I'll concede to character limits of the much less advanced systems preventing the move from being dubbed Quintuple Slap, but even 5-Times Slap (or 5x Slap if you're really stingy with characters) is still a better name than freaking Double Slap because it actually conveys what the effect of the move is and don't outright lie to you.
I can get past Rock Slide being named Avalanche in other translations because they're effectively synonyms for each other, but when something is outright lying to you or not giving you the full story of its effects, that's not good game design in my opinion.
I SORTA get why its called Double Slap. It's Japanese name is "Round Trip Slap" and the animation for the move is the user slapping the opponent two times before damage is done and goes on to either the next slapping or ending. It's essentially a literal and visual translation and not a descriptive translation. Would probably have been better if named "Multi Slap" (since it also doesn't hit all five times so it describing any number wouldn't be accurate).
It's like all of the missing information in the descriptions in SUMO/USUM, despite their being a much larger description box:
- Water Bubble not mentioning that the user's attacking stats are doubled when using Water-type attacks,
- Prankster not mentioning that Dark-types are immune to an opponent's Prankster.
- Light That Burns the Sky not saying that its category depends on the user's highest attacking stat.
- And for that matter, neither LTBTS or Photon Geyser mention that the category also determines which defensive stat is used, which can be important because you could think that it always uses Special Defence just because the attack's naturally a Special attack, despite that not being the case.
- Shadow Tag omitting that you're immune to other Shadow Tags.
- And probably others. But these stick out to me.
The problem is they only give on description to describe both what the Move/Ability/Item is and then its effects. If they give Moves, Abilities, and even Items both a description box (a box which describes the move, ability, or item looks like or is presented) and an effect box (a box which tells you all the info you need to know about the move) I think that would work much better than having to sacrifice either space or flavor text.