Pokemon Move Accuracy Comparison (Gen 1)
How accurate is Thunder in Gen 1? Compare 15 Pokemon Red and Blue move accuracy values, from Thunder 70 up to Earthquake 100. Change notes included. Verified.
Visual comparison
All values
Click any row to load it as Entry A.
| Name | Value | Context | Source |
|---|---|---|---|
| Thunder 70 percent. Lowest row here. Always hits in rain. | 70 percent | Electric, TM25, paralysis chance | Pokemon Red and Blue game data via Serebii RB attacks: Thunder 70 percent; Bulbapedia Thunder: 70 percent, rain bypass, sun 50 percent |
| Hydro Pump 80 percent. 120 power in Red and Blue. | 80 percent | Water, level up, high power | Pokemon Red and Blue game data via Serebii RB attacks: Hydro Pump 80 percent; Dittobase Red Blue moves: Hydro Pump 120 power 80 accuracy |
| Fire Blast 85 percent. 110 power. | 85 percent | Fire, TM38, burn chance | Pokemon Red and Blue game data via Bulbapedia Fire Blast: 85 percent accuracy, 110 power |
| Blizzard 90 percent in Gen 1. Fell to 70 later. | 90 percent | Ice, TM14, freeze chance | Pokemon Red and Blue game data via Serebii RB attacks: Blizzard 90 percent; Bulbapedia Blizzard: 90 percent in Gen 1, 70 percent later |
| Hyper Beam 90 percent. 150 power. | 90 percent | Normal, TM15, recharge turn | Pokemon Red and Blue game data via Dittobase: Hyper Beam 150 power 90 accuracy; Psypokes RBY: Hyper Beam 90 percent |
| Tackle 95 percent in Gen 1. Rose to 100 later. | 95 percent | Normal, starter move | Pokemon Red and Blue game data via Serebii Gen 1 AttackDex Tackle: 95 accuracy, 35 PP; Psypokes RBY: Tackle 95 percent |
| Quick Attack 100 percent. Always strikes first. | 100 percent | Normal, priority strike | Pokemon Red and Blue game data via Serebii RB attacks: Quick Attack 100 percent |
| Ember 100 percent. 40 power with burn chance. | 100 percent | Fire, starter move | Pokemon Red and Blue game data via Serebii RB attacks: Ember 100 percent; Dittobase: Ember 40 power 100 accuracy |
| Water Gun 100 percent. 40 power. | 100 percent | Water, starter move | Pokemon Red and Blue game data via Serebii RB attacks: Water Gun 100 percent |
| Thunder Shock 100 percent. 40 power with paralysis. | 100 percent | Electric, starter move | Pokemon Red and Blue game data via Dittobase: Thunder Shock 40 power 100 accuracy |
| Body Slam 100 percent. Paralysis chance. | 100 percent | Normal, heavy slam | Pokemon Red and Blue game data via Serebii RB attacks: Body Slam 100 percent |
| Surf 100 percent. 95 power. | 100 percent | Water, HM03, travel move | Pokemon Red and Blue game data via Serebii RB attacks: Surf 100 percent |
| Thunderbolt 100 percent. 95 power. | 100 percent | Electric, TM24, paralysis chance | Pokemon Red and Blue game data via Serebii RB attacks: Thunderbolt 100 percent |
| Psychic 100 percent. 90 power. | 100 percent | Psychic, TM29, special drop | Pokemon Red and Blue game data via Dittobase: Psychic 90 power 100 accuracy; Psypokes RBY: Psychic 100 percent |
| Earthquake 100 percent. 100 power. | 100 percent | Ground, TM26, hits all | Pokemon Red and Blue game data via Serebii RB attacks: Earthquake 100 percent; Dittobase: Earthquake 100 power 100 accuracy |
About this converter
Generation 1 prints fixed accuracy on every move. Nine standard moves sit at 100: Quick Attack, Ember, Water Gun, Thunder Shock, Body Slam, Surf, Thunderbolt, Flamethrower, Psychic and Earthquake. Ice Beam joins them at 100. Tackle sits at 95 in Red and Blue and rose to 100 in later games. Hyper Beam sits at 90. Blizzard sat at 90 in Generation 1 and fell to 70 later. Fire Blast sits at 85. Hydro Pump sits at 80. Thunder sits at 70 and stays the lowest row here. Rain removes Thunder misses and harsh sun halves it further.
How to use it
Pick two moves and a unit in the top row. The three boxes below stay linked. Change any box and the other two update. Try 1 Thunder against 1 Earthquake to see the 70 versus 100 gap. All rows are Generation 1 Red and Blue values.
Values pin Red and Blue game data with later changes noted per row. Blizzard is the big mover: 90 in Generation 1, 70 from Generation 2 on. Tackle moved from 95 to 100 in Generation 6. One hit knockout moves like Guillotine carry no accuracy number and stay out. Swift never misses and stays out because it has no listed value.
FAQ
What is the least accurate move here?
Thunder at 70 percent. It always hits in rain and drops to 50 percent in harsh sunlight.
Did Blizzard get less accurate?
90 percent in Red and Blue, 70 percent from Generation 2 on. The table pins 90 and notes the change.
Was Tackle ever less than perfect?
95 percent in Generation 1 and 100 percent from Generation 6 on. Quick Attack was always 100.
Why is Swift missing?
No. Swift never misses and one hit knockout moves have no listed value, so both stay out.
Sources
- Pokemon Red and Blue game data via Serebii RB attacks list (Thunder 70, Hydro Pump 80, Fire Blast 85, Blizzard 90, Earthquake 100, Tackle 95)
- Bulbapedia move pages: Blizzard (90 percent Gen 1, 70 later), Fire Blast (85), Thunder (70, rain and sun rules)
- Serebii Gen 1 AttackDex Tackle (95 accuracy, 35 PP); Dittobase Red Blue moves; Psypokes RBY attacks listing
Last verified: 2026-10-02 · 15 entries
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