How do extra slot mods work on sonic 3 air? : rSonicTheHedgehog

extra slotExtra Character Slots Unlimited, more commonly referred to as Extra Slots Unlimited or under the abbreviation ESU, is a framework for adding additional characters without replacing existing ones.Benefit. You gain one extra spell slot in your daily allotment, at any level up to one lower than the hhest level of spell you can currently cast.