Color Bus Sort

Color Bus Sort fills the lot with coloured passengers and a row of buses, one bus per colour. Tap any waiting passenger to pick them up, then tap the bus that matches their colour to seat them. A bus only takes riders of its own colour and shows how many seats are left, so once it is full it will not take any more. Clear the whole lot before the clock at the top runs out — seat every passenger on a same-colour bus and the lot is won. Each lot you clear escalates: more colours and more riders appear on the next one, and seating passengers in a quick streak builds a combo that multiplies your score. Pick a starting difficulty before you begin — Easy seats three colours, Normal four, and Hard five — then keep climbing for a higher score.