
TM27 Fissure | ||
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# | Location | Repeatable? |
1 | Viridian City Gym. Reward after defeating Giovanni. | No |
TM27 will be given to you by Viridian City Gym Leader Giovanni after you defeat him at the Viridian Gym. The Gym is located near the top right corner of Viridian City.
But the Viridian Gym will be closed until you’ve defeated the 7 other gym leaders and collected their badges.
Prerequisites
This is what you need to do before you can get TM27:
- Obtain the 7 other gym badges by defeating the 7 other gym leaders.
Getting TM27 Fissure
The Viridian City Gym is a large area with multiple paths that can lead to trainer battles.
This guide will show you the quickest route to Gym Leader Giovanni.
Staring from the inside of the Viridian Gym, walk northwest through the gap in the walls.

Then walk northeast past the trainers to your left until you reach another trainer (Cooltrainer) facing a right wall.

This trainer (Cooltrainer) can’t be avoided and must be fought in order to progress.

Cooltrainer’s Team | |
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Pokémon | Rhyhorn (Lv.43) |
Type | Rock/Ground |
Moves |
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After defeating the Cooltrainer, head west until you see a trainer (Black Belt) above you.

This Black Belt can’t be avoided and must be defeated in order to progress.

Black Belt’s Team | ||
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Pokémon | Machoke x2 (Lv.38) | Machop (Lv.38) |
Type | Fighting | Fighting |
Moves |
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After defeating the Black Belt, go back the way you came and return to the start of the Gym.
Head north along the right side of the gym until you reach a wall.

After reaching a wall, head west until you reach another wall.

Once you reach the wall, head southwest and you’ll quickly reach Giovanni.

Fighting Gym Leader Giovanni
At the back of the gym, you’ll find Giovanni. Talk to him to begin your battle.

Giovanni’s Team | |||||
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Pokémon | Dugtrio (Lv.50) | Persian (Lv.53) | Nidoqueen (Lv.53) | Nidoking (Lv.55) | Rhydon (Lv.55) |
Type | Ground | Normal | Ground/Poison | Ground/Poison | Rock/Ground |
Moves |
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Tips for Fighting Giovanni
Watch out for Fissure and Horn Drill. Giovanni’s Dugtrio and Rhydon know Fissure and Horn Drill respectively. These two moves have very low accuracy, but will instantly KO any Pokémon. However, Fissure won’t work against Flying type Pokémon since it’s a Ground type attack.
Watch out for Nidoqueen and Nidoking’s Thunder. Giovanni’s Nidoqueen and Nidoking both know Thunder. This is a move that these two Pokémon don’t normally learn and it offers coverage against Water and Flying type Pokémon.
Once you defeat Giovanni, he’ll give you TM27 Fissure along with the Earthbadge.

Fissure Details + Uses
Fissure Move Details | |
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Type | Ground |
Power | – |
Accuracy | 30% |
PP | 5 (max. 8) |
Effect | Instantly makes the opposing Pokémon faint. Doesn’t work if the opposing Pokémon is faster than the user. |
Fissure is a powerful move that always knocks out a Pokémon with one hit.
The major drawback is that Fissure has an incredibly low accuracy at 30%.
Also, being a Ground-type move, Fissure doesn’t affect Flying-type Pokémon. Furthermore, Fissure will not work on a Pokémon that’s faster than the user.
While Fissure’s promise of one-hit KO’s is tempting, its high miss potential and speed requirements make it a pretty unreliable move in practice. So it’s rarely ever worth using in a regular playthrough.

-
Pokémon Yellow
- How To Get TM27 Fissure in Pokémon Yellow