Where To Get TM31 Mud-Slap in Pokémon Crystal

Approaching Falkner in Pokémon Crystal
TM31 Mud-Slap
# Location Repeatable?
1 Violet City Gym. Given as a reward from Gym Leader Falkner after defeating him in battle. No

You’ll get TM31 Mud-Slap as a reward for defeating Gym Leader Falkner in Violet City’s Gym.

The Violet Gym is open for business straight away once you arrive in Violet City. It’s the first Gym you’ll tackle on your adventure, so it shouldn’t be too hard to conquer.

Getting TM31 Mud-Slap (Step-by-Step)

Step 1: Find the Violet Gym in the middle of Violet City. It’s directly to the right of the PokéMart.

Approaching Violet Gym / Pokémon Crystal
Approaching Violet Gym.

Step 2: Proceed over the S-shaped catwalk, facing two trainers on the way to Falkner.

Bird’s eye view of Violet Gym / Pokémon Crystal
Bird’s eye view of Violet Gym.

Tip: You can catch Rock-type Pokémon like Geodude in the nearby Dark Cave (east of town). Alternatively, trade a Bellsprout for an Onix in the house left of the Pokémon Center.

Step 3: Defeat Gym Leader Falkner and claim TM31 Mud-Slap.

Gym Leader Falkner’s Team

Pokémon Pidgey (Level 7) Pidgeotto (Level 9)
Type Normal/Flying Normal/Flying
Held Item None None
  • Tackle
  • Mud-Slap
  • Tackle
  • Gust
  • Mud-Slap

Much like the rest of the trainers in Violet Gym, Falkner’s team is made up of Normal/Flying-type Pokémon.

As such, some Rock-type moves and critters can make the fight much easier.

Falkner will grant you TM31 Mud-Slap as a reward after you shoot down his Flying-type team.

Receiving TM31 from Falkner / Pokémon Crystal
Receiving TM31 from Falkner.

TM31 Mud-Slap Details + Uses

Mud-Slap Move Details
Type Ground
Category Physical
Power 20
Effect Lowers the target’s Accuracy slightly.
Accuracy 100%
PP 10

Mud-Slap is a strategic move whose value lies in its effect: diminishing the opponent’s Accuracy.

This can be fantastic when dealing with Pokémon who rely on high-Power, low-Accuracy moves with scarce PP such as DynamicPunch or Zap Cannon.

The minor damage-dealing potential is more relevant when teaching Mud-Slap to Pokémon to increase their type coverage.

Example: Flying-type Pokémon can use this Ground-type move to deal with Electric-type critters, which are naturally strong against Flying-types. Same goes for Water-type Pokémon.

Here are some Pokémon that could make great use of this TM and that can be caught relatively early in the game:

Pokémon Type Location
Pidgey Normal/Flying Routes 29, 30, 31 (Morning, Day).
Sandshrew Ground Union Cave (Morning, Day).
Poliwhirl Water Evolve Poliwag.
Geodude Rock/Ground Dark Cave, Union Cave.

Nelson Chitty

171 articles

Nelson Chitty is a Venezuelan expat living in Argentina. He’s a writer and translator passionate about history and foreign cultures. His ideal weekend is spent between leisurely playing games of Civilization VI and looking for the next seinen anime to marathon.

View Writer's Posts →