How does damage work in Pokemon Gold and Silver?

Gold and Silver use the Generation II integer damage formula: build a core from level, power, and Attack/Defense or Sp. Atk/Sp. Def, apply type-boost items and critical ×2, add STAB, apply the Gen 2 type chart, then roll a random factor from 217 to 255 over 255 (about 85%–100%).

Is Physical vs Special based on the move or the type in Gen 2?

In original Gold and Silver, category is still decided by the move type. Physical types use Attack vs Defense. Special types use Special Attack vs Special Defense. Dark and Steel are included in the Gen 2 chart.

How do critical hits work in Gold and Silver?

Unlike Generation I, Gen 2 critical hits multiply the core damage by 2. They use unmodified stats—and therefore bypass harmful stages, burn, and a screen—only when the defender's relevant Defense stage is at least the attacker's relevant Attack stage. If the attacker has the greater stage advantage, boosted stats and those modifiers remain in use.

What DVs do gym leaders use?

Each trainer class has fixed DV spreads in pret/pokegold. Whitney uses 8/8/8/8. Clair uses 7/12/13/13. Red uses 15/13/13/14. Presets load those values automatically.

Pokemon Gold and Silver Damage Calculator - Gen 2 Battle Tool

Pokemon Gold & Silver damage calculator

Roll cartridge-order damage for original Gold and Silver: type-based Physical vs Special, split Sp. Atk / Sp. Def, STAB, the full Gen 2 type chart (Dark & Steel), crit ×2, weather, type items, badge type boosts, and the classic 217–255 random window. Presets jump to Whitney, Clair, Lance, and Red.

Integer Gen 2 formula SpA / SpD split Crit = damage ×2 Rolls 217–255 158 damaging moves 251 species

Core pipeline

base = floor(L×2/5)+2 base = base × Power × Offense / Defense / 50 item? ×110/100 crit? ×2 cap: min(997, base) + 2

Then weather, badge type +⅛, STAB (+ half), type matchups (×2 / ×½ / 0), then random 217–255 / 255.

Critical hits (Gen 2)

Multiply damage by 2 after the core formula.
Compare the relevant Attack and Defense stages first.
If Defense stage ≥ Attack stage, use base stats; this also bypasses burn and the matching screen.
If Attack stage is higher, keep the modified stats, burn cut, and screen.
Not the Gen 1 “level ×2” path.

Physical vs Special

Still type-based in Gold/Silver. Physical types: Normal, Fighting, Flying, Poison, Ground, Rock, Bug, Ghost, Steel. Special types: Fire, Water, Grass, Electric, Psychic, Ice, Dragon, Dark. Offense uses Atk or SpA; defense uses Def or SpD.

Trainer DV defaults

Presets load class DVs from pret/pokegold (data/trainers/dvs.asm). Whitney is 8/8/8/8, Clair 7/12/13/13, Champion Lance 13/12/13/13, Red 15/13/13/14. Zero Stat Exp unless you change it.

Pokemon Gold and Silver Damage Calculator - Gen 2 Battle Tool

Pokemon Gold & Silver damage calculator

Level → power → Atk/SpA vs Def/SpD → item → crit → STAB → types → roll

Matchup damage workbench

What the cartridge actually does

Core pipeline

Critical hits (Gen 2)

Physical vs Special

Trainer DV defaults

Using rolls in a real Gold/Silver run

Whitney’s Miltank

Screens and burn

Clair and Lance

Multi-hit moves

Damage calculator questions

Pokemon Gold and Silver Damage Calculator - Gen 2 Battle Tool

Pokemon Gold & Silver damage calculator

Level → power → Atk/SpA vs Def/SpD → item → crit → STAB → types → roll

Matchup damage workbench

Inputs

What the cartridge actually does

Core pipeline

Critical hits (Gen 2)

Physical vs Special

Trainer DV defaults

Using rolls in a real Gold/Silver run

Whitney’s Miltank

Screens and burn

Clair and Lance

Multi-hit moves

Damage calculator questions

From roll range to full battle prep