Triple Double Bonus

Triple Double Bonus takes the Double Double kicker idea to its limit. Four Aces with a 2, 3, or 4 alongside pay 800-for-1 — the same as a Royal Flush — and Four 2s–4s with an A/2/3/4 kicker pay 400-for-1.

The bill is paid at the bottom of the table: Two Pair returns only the bet and Three of a Kind pays 2 instead of 3. A 9/7 Full House / Flush base lifts it back to 99.58%, but the low end is thin enough that this is the highest-variance conventional game here.