TM06 – Toxic PP: 10 Power: None Accuracy: 85%
Location: Fuchsia City Gym, prize for defeating Koga
Gen. 1 Effect: The opponent is badly poisoned (damage from poison doubles every turn)
Smogon Suggestion: Farfetch'd
Casual Suggestion: Venusaur, Ninetales
Of the moves that cause the poison status, this one is the best. Thus, it works well if you like to trap an opponent with Wrap, Bind, Fire Spin, or Clamp. (Ninetales, again, is my favorite for this tactic.) Everyone is capable of learning it. But to achieve the best results, you’ll want to use it in conjunction with Leech Seed, because in Generation I, the doubling effects of Toxic will carry over to Leech Seed. Only Venusaur and Exeggutor learn Leech Seed, and since Exeggutor is focused on a different battling style, Venusaur is my pick.
TM20 – Rage PP: 20 Power: 20 Accuracy: 100%
Location: Route 15
Gen. 1 Effect: A non-stop Normal attack that increases the user's Attack stat every turn it gets hit
Smogon Suggestion: Don't Use
Casual Suggestion: Fearow (Temporarily)
Rage really stinks in Gen 1. It’s fun in concept, repeatedly attacking and only getting stronger with each hit is a cool concept. But it traps you in the move and you aren’t going to use it strategically. Especially since a glitch causes it’s accuracy to significantly drop to 0.4% if it misses just once, so don't use it in an accuracy-lowering/evasion-heightening battle. But if you insist, try it on Fearow. It’s the strongest that doesn’t learn the move naturally (after Snorlax, but Snorlax is needed elsewhere).
TM16 – Pay Day PP: 20 Power: 40 Accuracy: 100%
Location: Route 12, on the isolated pier
Gen. 1 Effect: A Normal attack that nets bonus money for the end of the battle with each hit
Smogon Suggestion: Don't Use
Casual Suggestion: Seel
So, the only reason you’d use Pay Day is to rack up cash. Snorlax will be the strongest Pay Dayer, but in truth everyone learns something better. But if you're using it only for the cash-making abilities, go with Seel as it is the weakest user (meaning you'll have to deliver more hits and earn more money). Meowth is actually tied with Seel, but it learns Pay Day naturally and it is not available in Red/Yellow.
TM39 – Swift PP: 20 Power: 60 Accuracy: 100%
Location: Route 12, behind the Cuttable tree
Gen. 1 Effect: A Normal attack that always hits no matter what
Smogon Suggestion: Mew
Casual Suggestion: Pidgeot
This is a cool move is you’re dealing with evasion and accuracy loss in your battles. Fearow, Raticate, and Pidgeot are the best, but since Fearow and Raticate learn stronger moves, this is perfect for Pidgeot. Smogon suggests Mew only if you're allowing moves like Double Team in your battles, but many users are stronger than Mew if that is the case (Dragonite, Persian, and Flareon, for example).
TM41 – Soft-Boiled PP: 10 Power: None Accuracy: N/A
Location: Celadon City, across the pond in front of a house
Gen. 1 Effect: The user heals 50% of its HP and can be used to share 20% HP outside of battle
Smogon Suggestion: Chansey, Mew
Casual Suggestion: Chansey, Mew
Only Chansey and Mew can learn this move. It was specifically made to take advantage of Chansey’s high HP to make it into the only healer in the whole game, but if you want to try it on Mew, you are more than welcome to. Mew doesn't learn Recover, so it's just as good of a choice.
TM36 – Self Destruct PP: 5 Power: 130 Accuracy: 100%
Location: Silph Co., 2F from hiding woman
Gen. 1 Effect: A Normal attack that cuts opponents Defense in half and causes the user to faint
Smogon Suggestion: Snorlax, Mewtwo
Casual Suggestion: Snorlax, Mewtwo
Snorlax causes the most amount of damage in the game with this move. Golem is up next, but learns the stronger variant Explosion. Most Self-Destruct users can learn Explosion anyway, but Mewtwo cannot, making him the second best choice. However, if you don’t feel like getting Snorlax or Mewtwo into a sacrificial position, choose whoever you don’t teach Explosion to.
TM09 – Take Down PP: 20 Power: 95 Accuracy: 85%
Location: Silph Co., 5F
Gen. 1 Effect: A Normal attack that delivers 1/4 damage recoil to the user
Smogon Suggestion: Don't Use
Casual Suggestion: Fearow, Porygon (Temporarily)
Take Down is a weaker move and less accurate move than Double-Edge. So, after we’ve given away our Double-Edge and the slightly weaker but better Body Slam, Fearow is our strongest contender (after the usual Dodrio, Snorlax, Tauros, Kangskhan bunch). I'd also suggest someone like Wigglytuff with her high HP, but she already learns Double-Edge. However, it could also benefit someone like Porygon whose strongest natural attack is the unimpressive Tri-Attack.
TM03 – Swords Dance PP: 30 Power: None Accuracy: N/A
Location: Silph Co., 7F
Gen. 1 Effect: The user's Attack stat increases by two stages
Smogon Suggestion: Everyone (especially Victreebel)
Casual Suggestion: Anyone
This is another one of those moves that really works on whoever learns it. Those with a high Attack stat become beastly (Kingler, Kabutops, Victreebel, Sandslash, and Mew) but it can help your weaker fighters as well. Just make sure they have at least one physical attack that can use the bonus.
TM26 – Earthquake PP: 10 Power: 100 Accuracy: 100%
Location: Silph Co., 10F
Gen. 1 Effect: A standard Ground attack
Smogon Suggestion: Everyone (Rhydon, Snorlax, and Tauros in particular)
Casual Suggestion: Same as Smogon
It’s Dig without the penalties, making it the best Ground attack in the game. And since Rhydon is the strongest Ground Pokémon and since he doesn’t learn the move naturally, teach Earthquake to him. Otherwise, teach it to the strongest Attacker on your team that can learn it (Ground types being the preferred choice, as with Dig).
TM46 – Psywave PP: 15 Power: Varies Accuracy: 85%
Location: Saffron City Gym, prize for defeating Sabrina
Gen. 1 Effect: An attack that randomly delivers damage between .5 x and 1.5 x the user’s level
Smogon Suggestion: Don't Use
Casual Suggestion: Butterfree, Mr. Mime
Like Seismic Toss, this move is virtually the same for anyone who learns it. But because it’s random, you really want to go with a Pokémon with the weakest moves to ensure that the odds of this move are in your favor. Enter Butterfree. Supposing you didn’t use all your strong TMs on Butterfree for some odd reason, Psybeam will be it’s strongest move and Psywave will be better 94% of the time. Otherwise, if you didn't teach Mr. Mime Psychic or Seismic Toss, this is a good fit for him.
TM31 – Mimic PP: 10 Power: N/A Accuracy: N/A
Location: Saffron City, from the Copycat’s house after clearing out Team Rocket
Gen. 1 Effect: The user copies one of the opponent's moves
Smogon Suggestion: Arcanine, Blastoise, Dewgong, Dodrio, Dugtrio, Farfetch'd, Jynx, Magmar, Magneton, Omastar, Pidgeot, Seadra, Vaporeon
Casual Suggestion: Same as Smogon, if you want
Everyone can learn Mimic and it’s mostly used for Pokémon with limited movepools that can withstand a hit and possibly use an opponent’s own move against it. While it’s a gamble, Smogon likes this move in the competitive scene, with Jynx being the strongest candidate due to the types of moves it would be up against.
Check out the conclusion, Part 5: The Power Plant to Victory Road!