Good fun, but I don't understand how prestige works in current build. Prestige button appears after gaining one token, but prestiging then doesn't seem to offer any upgrades and you lose token you had. I guess you need three tokens to get a Ticket to actually unlock anything through prestige but after quite a lot of play I've still only got one token and even fully upgraded the balls start feeling underpowered on level 18. My fixes would be:

• Don't show Prestige button until you have something you can actually spend in the "Prestige shop" (which I assume exists)
• Provide some explanation of how the prestige works and perhaps which levels will unlock tokens otherwise it feels a long way away
• Make getting enough tokens to get a ticket happen a bit quicker (even if actually there's one "cheap" thing in the prestige shop and the others are more expensive)

Also not sure how the different colour balls work as they all have 20 upgrade levels time 1.5% spawn chance so presumably that ends up at 30% each or 150% chance total which doesn't quite make sense.