A Huge slime is a rare variant that hits far harder than the base version, and some, like Huge Lucky, also stack an extra luck multiplier on top of the rest of your build.

Yes, a Jackpot Spin works differently from a normal roll, it has its own separate chance to award multiple bonuses at once, upgraded through its own bonus-chance path rather than your general luck stat.

Yes, Slime variants can stack together, the rarest possible pulls combine multiple variants at once, like an Inverted Shiny Huge slime, which is why the very top pulls are so much rarer than any single variant alone.

Yes, you keep the Slimes, Gamepasses, and Coins included with my purchase, exactly as shown in the listing.