| ← HM03 | HMs | HM05 → |
HM04 is a HM introduced in Generation I. As a HM, the move it teaches can be used in battle and outside of battle, however, with the exception of Generation V, in order to use the move outside of battle, a certain gym badge is required. In all generations, HM04 is Strength.
| HM04 | ||
| Generation I | File:Normal HM sprite.png Strength | Badge Required |
| RBY | Obtain from the Safari Zone Warder in Fuchsia City after finding his gold teeth. | Rainbow Badge |
| Generation II | File:Normal HM sprite.png Strength | Badge Required |
| GSC | Obtain from a Sailor at Olivine City's café. | Plain Badge |
| Generation III | File:Normal HM sprite.png Strength | Badge Required |
| RSE | Obtain from Wanda's boyfriend in Rusturf Tunnel after reuniting him with her by breaking the fallen debris that seperated them. | Heat Badge |
| FRLG | Obtain from the Safari Zone Warder in Fuchsia City after finding his gold teeth. | Rainbow Badge |
| Generation IV | File:Normal HM sprite.png Strength | Badge Required |
| DP | Obtain from an old woman inside the Lost Tower. | Mine Badge |
| Pt | Obtain from Riley (Sinnoh) | Riley]] after arriving on Iron Island. |
| HGSS | Obtain from a Sailor at Olivine City's café. | Plain Badge |
| Generation V | File:Normal HM sprite.png Strength | Badge Required |
| BW | Obtain from a man in Nimbasa City. | None |
| B2W2 | Obtain from Hugh in Castelia Sewers after defeating Team Plasma Grunts. | None |
| Generation VI |  Strength
|
Badge Required |
| XY | Obtain from Grant on Cyllage City's bike path. | Cliff Badge |
| ORAS | Obtain from Brendan or May upon entering Route 112. | Heat Badge |
