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Press the ball and drag a route to the star. Grey walls block the way. You can drag straight through an amber block to open a shortcut — but each block you clear adds to your cost on top of your steps. The lower your total cost, the more stars. Sometimes the long way round beats paying to cut through.
The scored block runs a little faster and won't show feedback between trials. Go as fast as you can while staying accurate.
Digits appear one at a time. Memorise them, then key them back in the same orderreverse order. Each round the sequence grows by one until you reach your limit.
Bubbles pop up one at a time, each showing a quick sum (e.g. 6+4, 13−5 or 3×4). Work out its value and click every bubble that equals the target shown up top before it drifts away — a correct tap pops green, a wrong one red. There is no counter, so keep scanning. Hard mode brings bigger multiplication, harder totals, and a faster spawn.
Each round you receive credits and decide how many to invest with your partner. Whatever you invest is tripled on the way across — then your partner decides how much to send back. They might repay your trust, or keep the lot. Anything you don't invest, you simply keep. You'll meet partners, rounds each — work out who's worth trusting. In Hard mode the partners are unpredictable, so don't bank on first impressions.