Random Number Generation

Turn Order

Attacks

Ability Appearance

When it is Kirby's turn to attack, abilities have a chance of appearing on each side of the screen. Several random numbers are used during this process. This calculation is different from power calculation in The Arena rest area.

Procedure

 
Flowchart depicting how Battle Windows uses RNG.
  • 1.) Determine if a power will appear on the right side:
    • 64 < RNG < 127: Power appears
    • Else: Does not appear (Skip steps 2 and 3)
  • 2.) Determine which pool to choose from:
    • 0 < RNG < 63: Pool 1 (Sprite number 90)
    • 64 < RNG < 127: Pool 2 (Sprite number 91)
    • 128 < RNG < 191: Pool 1 (Sprite number 90)
    • 192 < RNG < 255: Pool 2 (Sprite number 91)
  • 3.) Choose a power from the pool chosen:
RNG Ability Pool 1 Ability Pool 2
0 - 21 Fighter Stone
22 - 42 Plasma Cutter 43 - 63 Hammer Wheel 64 - 85 Beam Jet
86 - 106 Bomb Ice
107 - 127 Sword Parasol
128 - 148 Hammer Fire
149 - 170 Bomb Suplex
171 - 191 Plasma Ninja
192 - 213 Sword Yo-yo
214 - 233 Beam Mirror
234 - 255 Fighter Wing
  • 4.) Determine if a power will appear on the left side:
    • 128 < RNG < 191: Power appears
    • Else: Does not appear (Skip steps 5 and 6)
  • 5.) Same as step 2
  • 6.) Same as step 3

Notes:

  • If no abilities appear for 3 consecutive turns, abilities will appear from both sides on the next turn (steps 1 and 4 are skipped).
  • In the rare circumstance that abilities appear on both sides, and both sides contain the same ability, step 4 will be repeated again after step 6. This will continue to repeat until either both abilities are different, or only a right side ability appears.