Special rules

• Shell Game: stacks swap places after a play.
• Merry-Go-Stack: stacks move continuously in a pattern (ish).
• Free-Range Cards: hand cards wander around the screen.
• Pile Up: build stacks upward from 0 instead of down to 0.
• Lights Out: only the area around the pointer remains visible.
• Peek-a-Card: hidden hand cards reveal themselves on hover.
• Stack Attack: some stacks slowly regenerate.
• Roman Holiday: values are displayed as Roman numerals.
• Musical Stacks: active stacks rotate after each correct play.
• Sticky Fingers: a released card stays attached until placed.
• Hot Potatoes: dragging too long sends the card back.
• Blind Delivery: a card flips face down when hovered or touched.
• Mirror Match: the game view is mirrored on one or both axes.
• Sudden Death: only one mistake is allowed.
• Grace Period: the timer stays hidden until the final moments.
• Colorblind: tile colors are replaced with grey.

Bonuses

• Open Book: keeps one or more stacks face up.
• Quick Peek: briefly reveals stacks before each hand.
• Last Reminder: keeps the last played stack visible.
• Lesson Learned: reveals the stacks after a mistake.
• Pile Mover: lets you reposition stacks.
• Wild Card: adds a chance to draw a joker, that can be used to replace any card.
• Redraw: adds an option to replace the current hand once per round.
• Lucky Hand: increases the chance of having only playable cards.
• Bring a Friend: drags nearby cards along and may place them too.
• Double Down: automatically continues a sequence on the same stack if hand card allow it.
• Deja Vu: automatically sends duplicate in hand cards to matching stacks.
• Time Bank: carries some unused time into the next hand.
• Warm-Up: grants extra time at the start of each round.
• Spare Life: adds an extra mistake allowance.
• Safety Net: ignores the first mistake of a round.
• Clean Slate: completing a stack restore a life once per round.
• Rule Breaker: allow to remove one or more active special rules.
• Adaptation: reduces the intensity of special rules.