How about a booster gift hamper to those players reaching the last level and having to wait a week for new levels to appear. They miss out on the following:
1. Not being able to compete in Weekly race, since the maximum they can score is 45
2. Not being able to complete the daily sticker challenge for first game completed. If you finish the 45 levels in one day you can only collect every six weeks, two days, every three weeks and so on. Stretching it six days is not an option. I know there are ways around it, like leaving the last six levels and only playing one a day.
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