Players start with 2 fusion lock slots. Individual Fusion Lock gamepasses extend this up to 8 slots: Fusion Lock 3 (R$ 99), Lock 4 (R$ 149), Lock 5 (R$ 249), Lock 6 (R$ 399), Lock 7 (R$ 599), Lock 8 (R$ 899).
The Fusion Master bundle (R$ 1,199) covers slots up to 6 in a single purchase.
The King of the Coop bundle (R$ 1,499) also covers all six slots plus 2x Corn and Money and half elevator cost.
Sources note an internal contradiction: the King of the Coop bundle description says six slots while individual passes go to eight. Treat eight as the player-visible maximum.